The phone does not "jiggle." The icons jiggle to indicate that they are floating and can be moved. They will continue to jiggle until you press the Home button signaling that you are through moving things and want things stable again.i thought that one of the features was that when you highlight the icons to move them on the screen the phone would "jiggle" to let you know that. mine wont "jiggle"
No, it does not do anything.