The iPhone, iPad, and iPod Touch home button does more than just take you do the home screen. With a quick double tap it can bring up the multitasking pane or music controls. With a quick tripple click it can be used to start an accessibility feature such as VoiceOver, Zoom, Assistive Touch, or Guided Access. If you find it difficult or impossible to double or tripple click the home button quickly you can slow down the speed in settings. To slow down the home-click speed go to settings > general > accessibility > home-click speed. This setting is only available in iOS 6. To learn how to upgrade to iOS 6 click here. This setting will allow you to press the home button much slower in order to activate the double or tripple click actions. Watch the above video to learn more.