Apple introduced 4/5 fingers multitouch gestures in iOS 4.3 beta. However, these features could not made it to the final release of iOS 4.3.1 or 4.3. These are the steps to enable multitouch gestures in iOS 4.3.1 on iPhone 4, 3GS, iPad, iPod Touch.
iOS 4.3 GM brings new multitouch gestures to the iPad. Follow the steps below to enable multitouch gestures on your iPhone 4 running iOS 4.3 GM. Hit the jump to know more about the multitouch gestures and step-by-step instruction to enable them on iPhone 4.