A handheld device’s screen should be touch-sensitive. It took us awhile to figure that out, requiring a smart user interface team (at Apple, in this case) to turn the annoying (stylus-based touch screens are usability insults) into the obvious. But now that the kinetic-memetics have taken root, anything that works otherwise is incomplete.
Or, for all intents and purposes, broken.
Great article — I agree – the Chocolate Mousse has moved – the eggs have been broken and there’s no going back — if it looks like a touch interface it better damn _be_ a touch interface.