OWell, yea. It's actually no big deal. You can do anything you want to, regardless of whether its on the home screen or not. Just tap up the applications tray (the arrow pointing up next to "phone".) and go find the application. To add the icon back to the home screen, just find it in the application tray, and tap and hold down on it. It should pick up shortly after, and the phone make a little vibration. Drag and drop, just like your home computer. Also, try this 'long pess' on actual home screen in any blank space, I think you'll enjoy waht happens.