Offering up UI controls near an available finger seems like a great idea. If you're selecting a file at the bottom of the screen then you might want to have th

Offering up UI controls near an available finger seems like a great idea. If you're selecting a file at the bottom of the screen then you might want to have the controls at the top of the screen. If the phone can sense that that is what you're trying to do, this could be a great UI.