diff --git a/examples/cross_calculator/ios/cross-calculator.xcodeproj/project.pbxproj b/examples/cross_calculator/ios/cross-calculator.xcodeproj/project.pbxproj
index 9133b69179..b45e57dbd1 100644
--- a/examples/cross_calculator/ios/cross-calculator.xcodeproj/project.pbxproj
+++ b/examples/cross_calculator/ios/cross-calculator.xcodeproj/project.pbxproj
@@ -14,6 +14,8 @@
 		D531424E15BC87B6005EFF20 /* main.m in Sources */ = {isa = PBXBuildFile; fileRef = D531424B15BC87B6005EFF20 /* main.m */; };
 		D531427215BC94B1005EFF20 /* backend.m in Sources */ = {isa = PBXBuildFile; fileRef = D531426F15BC94B1005EFF20 /* backend.m */; };
 		D531427415BC94B1005EFF20 /* system.m in Sources */ = {isa = PBXBuildFile; fileRef = D531427115BC94B1005EFF20 /* system.m */; };
+		D5B6F94815FA8D4C0084A85B /* NRViewController.m in Sources */ = {isa = PBXBuildFile; fileRef = D5B6F94615FA8D4C0084A85B /* NRViewController.m */; };
+		D5B6F94915FA8D4C0084A85B /* NRViewController.xib in Resources */ = {isa = PBXBuildFile; fileRef = D5B6F94715FA8D4C0084A85B /* NRViewController.xib */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXFileReference section */
@@ -32,6 +34,9 @@
 		D531427115BC94B1005EFF20 /* system.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; name = system.m; path = build/nimcache/system.m; sourceTree = "<group>"; };
 		D592E19015C7120F005258EA /* backend.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = backend.h; path = build/nimcache/backend.h; sourceTree = "<group>"; };
 		D592E19115C71415005258EA /* nimbase.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = nimbase.h; path = build/nimcache/nimbase.h; sourceTree = "<group>"; };
+		D5B6F94515FA8D4C0084A85B /* NRViewController.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = NRViewController.h; path = src/NRViewController.h; sourceTree = "<group>"; };
+		D5B6F94615FA8D4C0084A85B /* NRViewController.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; name = NRViewController.m; path = src/NRViewController.m; sourceTree = "<group>"; };
+		D5B6F94715FA8D4C0084A85B /* NRViewController.xib */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = file.xib; name = NRViewController.xib; path = src/NRViewController.xib; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -99,8 +104,11 @@
 			children = (
 				D531424915BC87B6005EFF20 /* AppDelegate.h */,
 				D531424A15BC87B6005EFF20 /* AppDelegate.m */,
-				D531424B15BC87B6005EFF20 /* main.m */,
 				D531424C15BC87B6005EFF20 /* cross-calculator-Prefix.pch */,
+				D531424B15BC87B6005EFF20 /* main.m */,
+				D5B6F94515FA8D4C0084A85B /* NRViewController.h */,
+				D5B6F94615FA8D4C0084A85B /* NRViewController.m */,
+				D5B6F94715FA8D4C0084A85B /* NRViewController.xib */,
 			);
 			name = src;
 			sourceTree = "<group>";
@@ -185,6 +193,7 @@
 			isa = PBXResourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				D5B6F94915FA8D4C0084A85B /* NRViewController.xib in Resources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -215,6 +224,7 @@
 				D531424E15BC87B6005EFF20 /* main.m in Sources */,
 				D531427215BC94B1005EFF20 /* backend.m in Sources */,
 				D531427415BC94B1005EFF20 /* system.m in Sources */,
+				D5B6F94815FA8D4C0084A85B /* NRViewController.m in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
diff --git a/examples/cross_calculator/ios/src/AppDelegate.m b/examples/cross_calculator/ios/src/AppDelegate.m
index d39a08b656..53e7f6188b 100644
--- a/examples/cross_calculator/ios/src/AppDelegate.m
+++ b/examples/cross_calculator/ios/src/AppDelegate.m
@@ -1,39 +1,39 @@
 #import "AppDelegate.h"
 
-#import "backend.h"
+#import "NRViewController.h"
+
+
+@interface AppDelegate ()
+@property (nonatomic, retain) NRViewController *viewController;
+@end
+
 
 @implementation AppDelegate
 
+@synthesize viewController = _viewController;
 @synthesize window = _window;
 
-- (void)dealloc
-{
-	[_window release];
-	[super dealloc];
-}
-
 - (BOOL)application:(UIApplication *)application
 	didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
 {
-	self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen]
-		bounds]] autorelease];
-	// Override point for customization after application launch.
-	self.window.backgroundColor = [UIColor whiteColor];
+	self.window = [[[UIWindow alloc]
+		initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
+
+	self.viewController = [[NRViewController new] autorelease];
+	if ([self.window respondsToSelector:@selector(setRootViewController:)])
+		self.window.rootViewController = self.viewController;
+	else
+		[self.window addSubview:self.viewController.view];
 	[self.window makeKeyAndVisible];
 
-	// Call nimrod code and store the result.
-	const int a = 3;
-	const int b = 12;
-	const int c = myAdd(a, b);
-
-	// Add a label to show the results of the computation made by nimrod.
-	UILabel *label = [[UILabel alloc] initWithFrame:self.window.bounds];
-	label.textAlignment = UITextAlignmentCenter;
-	label.text = [NSString stringWithFormat:@"myAdd(%d, %d) = %d", a, b, c];
-	[self.window addSubview:label];
-	[label release];
-
 	return YES;
 }
 
+- (void)dealloc
+{
+	[_window release];
+	[_viewController release];
+	[super dealloc];
+}
+
 @end
diff --git a/examples/cross_calculator/ios/src/NRViewController.h b/examples/cross_calculator/ios/src/NRViewController.h
new file mode 100644
index 0000000000..36ba37758c
--- /dev/null
+++ b/examples/cross_calculator/ios/src/NRViewController.h
@@ -0,0 +1,11 @@
+@interface NRViewController : UIViewController
+
+@property (nonatomic, retain) IBOutlet UIButton *calculateButton;
+@property (nonatomic, retain) IBOutlet UITextField *aText;
+@property (nonatomic, retain) IBOutlet UITextField *bText;
+@property (nonatomic, retain) IBOutlet UILabel *resultLabel;
+
+- (IBAction)calculateButtonTouched;
+- (IBAction)backgroundTouched;
+
+@end
\ No newline at end of file
diff --git a/examples/cross_calculator/ios/src/NRViewController.m b/examples/cross_calculator/ios/src/NRViewController.m
new file mode 100644
index 0000000000..03b2548ad9
--- /dev/null
+++ b/examples/cross_calculator/ios/src/NRViewController.m
@@ -0,0 +1,74 @@
+#import "NRViewController.h"
+
+#import "backend.h"
+
+
+@implementation NRViewController
+
+@synthesize aText = _aText;
+@synthesize bText = _bText;
+@synthesize calculateButton = _calculateButton;
+@synthesize resultLabel = _resultLabel;
+
+/** We need no special custom initialization for this example.
+ * Note that this example project has been made to deploy only on iOS 4.x
+ * upwards because the currently available Xcode tools are incapable of
+ * generating iOS 3.x backwards compatible NIB files. If your device is 3.x
+ * only you can replace the NIM with UI construction in code and everything
+ * else should be fine.
+ */
+- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
+{
+	self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
+	if (self) {
+		// Custom initialization
+	}
+	return self;
+}
+
+- (void)dealloc
+{
+	[_aText release];
+	[_bText release];
+	[_calculateButton release];
+	[_resultLabel release];
+	[super dealloc];
+}
+
+- (void)viewDidUnload
+{
+	self.calculateButton = nil;
+	self.aText = nil;
+	self.bText = nil;
+	self.resultLabel = nil;
+	[super viewDidUnload];
+}
+
+- (BOOL)shouldAutorotateToInterfaceOrientation:
+	(UIInterfaceOrientation)interfaceOrientation
+{
+	return YES;
+}
+
+/// User wants to calculate the inputs. Well, do it!
+- (IBAction)calculateButtonTouched
+{
+	// Dismiss all keyboards.
+	[self backgroundTouched];
+
+	// Call nimrod code, store the result and display it.
+	const int a = [self.aText.text intValue];
+	const int b = [self.bText.text intValue];
+	const int c = myAdd(a, b);
+	self.resultLabel.text = [NSString stringWithFormat:@"%d + %d = %d",
+		a, b, c];
+}
+
+/// If the user touches the background, dismiss any visible keyboard.
+- (IBAction)backgroundTouched
+{
+	[self.aText resignFirstResponder];
+	[self.bText resignFirstResponder];
+}
+
+@end
diff --git a/examples/cross_calculator/ios/src/NRViewController.xib b/examples/cross_calculator/ios/src/NRViewController.xib
new file mode 100644
index 0000000000..3bf069b5ee
--- /dev/null
+++ b/examples/cross_calculator/ios/src/NRViewController.xib
@@ -0,0 +1,507 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<archive type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="8.00">
+	<data>
+		<int key="IBDocument.SystemTarget">0</int>
+		<string key="IBDocument.SystemVersion">11E53</string>
+		<string key="IBDocument.InterfaceBuilderVersion">2549</string>
+		<string key="IBDocument.AppKitVersion">1138.47</string>
+		<string key="IBDocument.HIToolboxVersion">569.00</string>
+		<object class="NSMutableDictionary" key="IBDocument.PluginVersions">
+			<string key="NS.key.0">com.apple.InterfaceBuilder.IBCocoaTouchPlugin</string>
+			<string key="NS.object.0">1498</string>
+		</object>
+		<array key="IBDocument.IntegratedClassDependencies">
+			<string>IBProxyObject</string>
+			<string>IBUIButton</string>
+			<string>IBUILabel</string>
+			<string>IBUITextField</string>
+			<string>IBUIView</string>
+		</array>
+		<array key="IBDocument.PluginDependencies">
+			<string>com.apple.InterfaceBuilder.IBCocoaTouchPlugin</string>
+		</array>
+		<object class="NSMutableDictionary" key="IBDocument.Metadata">
+			<string key="NS.key.0">PluginDependencyRecalculationVersion</string>
+			<integer value="1" key="NS.object.0"/>
+		</object>
+		<array class="NSMutableArray" key="IBDocument.RootObjects" id="1000">
+			<object class="IBProxyObject" id="372490531">
+				<string key="IBProxiedObjectIdentifier">IBFilesOwner</string>
+				<string key="targetRuntimeIdentifier">IBCocoaTouchFramework</string>
+			</object>
+			<object class="IBProxyObject" id="975951072">
+				<string key="IBProxiedObjectIdentifier">IBFirstResponder</string>
+				<string key="targetRuntimeIdentifier">IBCocoaTouchFramework</string>
+			</object>
+			<object class="IBUIView" id="191373211">
+				<reference key="NSNextResponder"/>
+				<int key="NSvFlags">274</int>
+				<array class="NSMutableArray" key="NSSubviews">
+					<object class="IBUILabel" id="353054360">
+						<reference key="NSNextResponder" ref="191373211"/>
+						<int key="NSvFlags">306</int>
+						<string key="NSFrameSize">{320, 34}</string>
+						<reference key="NSSuperview" ref="191373211"/>
+						<reference key="NSWindow"/>
+						<reference key="NSNextKeyView" ref="525225214"/>
+						<string key="NSReuseIdentifierKey">_NS:9</string>
+						<bool key="IBUIOpaque">NO</bool>
+						<bool key="IBUIClipsSubviews">YES</bool>
+						<int key="IBUIContentMode">7</int>
+						<bool key="IBUIUserInteractionEnabled">NO</bool>
+						<string key="targetRuntimeIdentifier">IBCocoaTouchFramework</string>
+						<string key="IBUIText">Nimrod Crossplatform Calculator</string>
+						<object class="NSColor" key="IBUITextColor" id="128895179">
+							<int key="NSColorSpace">1</int>
+							<bytes key="NSRGB">MCAwIDAAA</bytes>
+						</object>
+						<nil key="IBUIHighlightedColor"/>
+						<int key="IBUIBaselineAdjustment">0</int>
+						<float key="IBUIMinimumFontSize">10</float>
+						<int key="IBUITextAlignment">1</int>
+						<object class="IBUIFontDescription" key="IBUIFontDescription">
+							<int key="type">2</int>
+							<double key="pointSize">18</double>
+						</object>
+						<object class="NSFont" key="IBUIFont">
+							<string key="NSName">Helvetica-Bold</string>
+							<double key="NSSize">18</double>
+							<int key="NSfFlags">16</int>
+						</object>
+					</object>
+					<object class="IBUILabel" id="525225214">
+						<reference key="NSNextResponder" ref="191373211"/>
+						<int key="NSvFlags">294</int>
+						<string key="NSFrame">{{20, 42}, {165, 31}}</string>
+						<reference key="NSSuperview" ref="191373211"/>
+						<reference key="NSWindow"/>
+						<reference key="NSNextKeyView" ref="1040444341"/>
+						<string key="NSReuseIdentifierKey">_NS:9</string>
+						<bool key="IBUIOpaque">NO</bool>
+						<bool key="IBUIClipsSubviews">YES</bool>
+						<int key="IBUIContentMode">7</int>
+						<bool key="IBUIUserInteractionEnabled">NO</bool>
+						<string key="targetRuntimeIdentifier">IBCocoaTouchFramework</string>
+						<string key="IBUIText">Value A:</string>
+						<reference key="IBUITextColor" ref="128895179"/>
+						<nil key="IBUIHighlightedColor"/>
+						<int key="IBUIBaselineAdjustment">0</int>
+						<float key="IBUIMinimumFontSize">10</float>
+						<object class="IBUIFontDescription" key="IBUIFontDescription" id="768572949">
+							<int key="type">1</int>
+							<double key="pointSize">17</double>
+						</object>
+						<object class="NSFont" key="IBUIFont" id="972319481">
+							<string key="NSName">Helvetica</string>
+							<double key="NSSize">17</double>
+							<int key="NSfFlags">16</int>
+						</object>
+					</object>
+					<object class="IBUILabel" id="904781109">
+						<reference key="NSNextResponder" ref="191373211"/>
+						<int key="NSvFlags">294</int>
+						<string key="NSFrame">{{20, 81}, {165, 31}}</string>
+						<reference key="NSSuperview" ref="191373211"/>
+						<reference key="NSWindow"/>
+						<reference key="NSNextKeyView" ref="1041721572"/>
+						<string key="NSReuseIdentifierKey">_NS:9</string>
+						<bool key="IBUIOpaque">NO</bool>
+						<bool key="IBUIClipsSubviews">YES</bool>
+						<int key="IBUIContentMode">7</int>
+						<bool key="IBUIUserInteractionEnabled">NO</bool>
+						<string key="targetRuntimeIdentifier">IBCocoaTouchFramework</string>
+						<string key="IBUIText">Value B:</string>
+						<reference key="IBUITextColor" ref="128895179"/>
+						<nil key="IBUIHighlightedColor"/>
+						<int key="IBUIBaselineAdjustment">0</int>
+						<float key="IBUIMinimumFontSize">10</float>
+						<reference key="IBUIFontDescription" ref="768572949"/>
+						<reference key="IBUIFont" ref="972319481"/>
+					</object>
+					<object class="IBUIButton" id="557594991">
+						<reference key="NSNextResponder" ref="191373211"/>
+						<int key="NSvFlags">291</int>
+						<string key="NSFrame">{{193, 124}, {107, 37}}</string>
+						<reference key="NSSuperview" ref="191373211"/>
+						<reference key="NSWindow"/>
+						<reference key="NSNextKeyView"/>
+						<string key="NSReuseIdentifierKey">_NS:9</string>
+						<bool key="IBUIOpaque">NO</bool>
+						<string key="targetRuntimeIdentifier">IBCocoaTouchFramework</string>
+						<int key="IBUIContentHorizontalAlignment">0</int>
+						<int key="IBUIContentVerticalAlignment">0</int>
+						<int key="IBUIButtonType">1</int>
+						<string key="IBUINormalTitle">Add!</string>
+						<object class="NSColor" key="IBUIHighlightedTitleColor">
+							<int key="NSColorSpace">3</int>
+							<bytes key="NSWhite">MQA</bytes>
+						</object>
+						<object class="NSColor" key="IBUINormalTitleColor">
+							<int key="NSColorSpace">1</int>
+							<bytes key="NSRGB">MC4xOTYwNzg0MzQ2IDAuMzA5ODAzOTMyOSAwLjUyMTU2ODY1NgA</bytes>
+						</object>
+						<object class="NSColor" key="IBUINormalTitleShadowColor">
+							<int key="NSColorSpace">3</int>
+							<bytes key="NSWhite">MC41AA</bytes>
+						</object>
+						<object class="IBUIFontDescription" key="IBUIFontDescription">
+							<int key="type">2</int>
+							<double key="pointSize">15</double>
+						</object>
+						<object class="NSFont" key="IBUIFont">
+							<string key="NSName">Helvetica-Bold</string>
+							<double key="NSSize">15</double>
+							<int key="NSfFlags">16</int>
+						</object>
+					</object>
+					<object class="IBUILabel" id="360864196">
+						<reference key="NSNextResponder" ref="191373211"/>
+						<int key="NSvFlags">292</int>
+						<string key="NSFrame">{{20, 124}, {60, 37}}</string>
+						<reference key="NSSuperview" ref="191373211"/>
+						<reference key="NSWindow"/>
+						<reference key="NSNextKeyView" ref="521073831"/>
+						<string key="NSReuseIdentifierKey">_NS:9</string>
+						<bool key="IBUIOpaque">NO</bool>
+						<bool key="IBUIClipsSubviews">YES</bool>
+						<int key="IBUIContentMode">7</int>
+						<bool key="IBUIUserInteractionEnabled">NO</bool>
+						<string key="targetRuntimeIdentifier">IBCocoaTouchFramework</string>
+						<string key="IBUIText">Result:</string>
+						<reference key="IBUITextColor" ref="128895179"/>
+						<nil key="IBUIHighlightedColor"/>
+						<int key="IBUIBaselineAdjustment">0</int>
+						<float key="IBUIMinimumFontSize">10</float>
+						<reference key="IBUIFontDescription" ref="768572949"/>
+						<reference key="IBUIFont" ref="972319481"/>
+					</object>
+					<object class="IBUILabel" id="521073831">
+						<reference key="NSNextResponder" ref="191373211"/>
+						<int key="NSvFlags">294</int>
+						<string key="NSFrame">{{88, 124}, {97, 37}}</string>
+						<reference key="NSSuperview" ref="191373211"/>
+						<reference key="NSWindow"/>
+						<reference key="NSNextKeyView" ref="557594991"/>
+						<string key="NSReuseIdentifierKey">_NS:9</string>
+						<bool key="IBUIOpaque">NO</bool>
+						<bool key="IBUIClipsSubviews">YES</bool>
+						<int key="IBUIContentMode">7</int>
+						<bool key="IBUIUserInteractionEnabled">NO</bool>
+						<string key="targetRuntimeIdentifier">IBCocoaTouchFramework</string>
+						<string key="IBUIText"/>
+						<reference key="IBUITextColor" ref="128895179"/>
+						<nil key="IBUIHighlightedColor"/>
+						<int key="IBUIBaselineAdjustment">0</int>
+						<float key="IBUIMinimumFontSize">10</float>
+						<reference key="IBUIFontDescription" ref="768572949"/>
+						<reference key="IBUIFont" ref="972319481"/>
+					</object>
+					<object class="IBUITextField" id="1040444341">
+						<reference key="NSNextResponder" ref="191373211"/>
+						<int key="NSvFlags">291</int>
+						<string key="NSFrame">{{193, 42}, {107, 31}}</string>
+						<reference key="NSSuperview" ref="191373211"/>
+						<reference key="NSWindow"/>
+						<reference key="NSNextKeyView" ref="904781109"/>
+						<string key="NSReuseIdentifierKey">_NS:9</string>
+						<bool key="IBUIOpaque">NO</bool>
+						<bool key="IBUIClipsSubviews">YES</bool>
+						<string key="targetRuntimeIdentifier">IBCocoaTouchFramework</string>
+						<int key="IBUIContentVerticalAlignment">0</int>
+						<string key="IBUIText"/>
+						<int key="IBUIBorderStyle">3</int>
+						<string key="IBUIPlaceholder">Integer</string>
+						<object class="NSColor" key="IBUITextColor">
+							<int key="NSColorSpace">3</int>
+							<bytes key="NSWhite">MAA</bytes>
+							<object class="NSColorSpace" key="NSCustomColorSpace" id="433120901">
+								<int key="NSID">2</int>
+							</object>
+						</object>
+						<int key="IBUITextAlignment">1</int>
+						<bool key="IBUIAdjustsFontSizeToFit">YES</bool>
+						<float key="IBUIMinimumFontSize">17</float>
+						<object class="IBUITextInputTraits" key="IBUITextInputTraits">
+							<int key="IBUIKeyboardType">4</int>
+							<string key="targetRuntimeIdentifier">IBCocoaTouchFramework</string>
+						</object>
+						<int key="IBUIClearButtonMode">1</int>
+						<object class="IBUIFontDescription" key="IBUIFontDescription" id="836805198">
+							<int key="type">1</int>
+							<double key="pointSize">14</double>
+						</object>
+						<object class="NSFont" key="IBUIFont" id="700927782">
+							<string key="NSName">Helvetica</string>
+							<double key="NSSize">14</double>
+							<int key="NSfFlags">16</int>
+						</object>
+					</object>
+					<object class="IBUITextField" id="1041721572">
+						<reference key="NSNextResponder" ref="191373211"/>
+						<int key="NSvFlags">291</int>
+						<string key="NSFrame">{{193, 81}, {107, 31}}</string>
+						<reference key="NSSuperview" ref="191373211"/>
+						<reference key="NSWindow"/>
+						<reference key="NSNextKeyView" ref="360864196"/>
+						<string key="NSReuseIdentifierKey">_NS:9</string>
+						<bool key="IBUIOpaque">NO</bool>
+						<bool key="IBUIClipsSubviews">YES</bool>
+						<string key="targetRuntimeIdentifier">IBCocoaTouchFramework</string>
+						<int key="IBUIContentVerticalAlignment">0</int>
+						<string key="IBUIText"/>
+						<int key="IBUIBorderStyle">3</int>
+						<string key="IBUIPlaceholder">Integer</string>
+						<object class="NSColor" key="IBUITextColor">
+							<int key="NSColorSpace">3</int>
+							<bytes key="NSWhite">MAA</bytes>
+							<reference key="NSCustomColorSpace" ref="433120901"/>
+						</object>
+						<int key="IBUITextAlignment">1</int>
+						<bool key="IBUIAdjustsFontSizeToFit">YES</bool>
+						<float key="IBUIMinimumFontSize">17</float>
+						<object class="IBUITextInputTraits" key="IBUITextInputTraits">
+							<int key="IBUIKeyboardType">4</int>
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