How to Enable Multi-Touch Gestures in iOS 4.3.1

Follow the instructions to enable multi-touch gestures for iPhon 3GS, iPhone 4, iPod Touch and iPad:

We will be editing 3 plist files in this tutorial. To edit and find .plist files use following application for Windows machine or Mac:

Windows users can use plist editor
Mac users can use TextWrangler / BBEdit / XCode.
Use USB based applications like iPhone Explorer or DiskAid to access and replace these files or via SSH using WinSCP or CyberDuck(Mac).

Step 1:

Navigate to Root > var > mobile > Library > Preferences > com.apple.springboard.plist

Copy this file to your computer and add the following two lines of code:

SBUseSystemGestures

enable-multitouch-gestures-iOS 4.3.1

Step 2:

Navigate to Root > System > Library > CoreServices > SpringBoard.app > N90AP.plist
N90AP.plist exists on iPhone 4 only. The corresponding file for iPhone 3GS is N88AP.plist, iPod Touch is N81AP.plist and for iPad K48AP.plist. Usually, there’s just one of this file’s kind in the specified folder, so it should not be very difficult to identify.
Add the following two lines:

multitasking-gestures

enable-multi-touch-gestures-iOS 4.3.1

Step 3:

Navigate to Root > Applications > Preferences.app > General.plist

Replace the following block of code with the new code.

               
			cell
			PSGroupCell
			footerCellClass
			MultitaskingGestureExplanationView
			id
			Mutltitasking_Gesture_Group
			requiredCapabilities
			
				multitasking-gestures
			
		
		
			cell
			PSSwitchCell
			default
			
			defaults
			com.apple.springboard
			id
			Mutltitasking_Gesture_Switch
			key
			SBUseSystemGestures
			label
			Multitasking_Gestures
			requiredCapabilities
			
				multitasking-gestures

With new Code:

                
			cell
			PSGroupCell
			footerCellClass
			MultitaskingGestureExplanationView
			requiredCapabilities
			
				multitasking-gestures
			
		
		
			cell
			PSSwitchCell
			default
			
			defaults
			com.apple.springboard
			key
			SBUseSystemGestures
			label
			Multitasking Gestures
			requiredCapabilities
			
				multitasking-gestures

After you have saved these edit files put them back in their locations and restart or respring your iOS device for the changes to take effect.

Enabling Multitasking Gestures:

Go to Settings > General and scroll down to see Multitasking gestures.
You can now do the following three gestures using four fingers, though in my opinion the iPhone or iPod Touch screens are too small for these many fingers.

Pinch to home screen
Swipe up for Multitasking bar
Swipe left/right to switch apps