The iPad, a tablet computer made by Apple, comes with a variety of free apps already installed, such as Mail, the Safari Web browser and the iCal calendar app, and you can download more from Apple's App Store. The icon of each app appears on the iPad home screen and when you want to reposition an app icon, move it into a folder or delete it, you touch any app icon and hold it until they all start jiggling. App icons only jiggle when they are enabled for repositioning or deletion. You can easily get the app icons to stop jiggling on your iPad.
Hold the iPad in one hand.
Locate the "Home" button below the iPad's multi-touch display.
Press the "Home" button and then release it. The app icons stop shaking.