How can this be seen as anything but a good thing? At the very least, touchscreens can be used as a more user-friendly (and faster!) mouse. Want to double-click something? Tap it twice. Aim a gun in a FPS game? Touch the spot, and have your gun there instantly a 'la Metroid Prime Hunters. There won't be any more need for the split-second delay while you move the mouse to touch something.