There are some four and five finger gestures on the iPad (iOS 4.3) that can be enabled by downloading Apple’s development kit, Xcode. The gestures can be enabled on the iPhone, too, but they seem much less useful on the smaller screen. Xcode costs $5 to download and you have to install it on a Mac, but you do not have to purchase the developer license. This website explains how to download Xcode and enable the gestures. The gestures include:

  • Pinching the screen with all five fingers to close an app and return to the home screen
  • Quickly switching between apps by swiping four fingers across the screen
  • Opening the multitasking bar by swiping four fingers up the screen