Most UI metaphors are nowadays derived from actions we find physically familiar. But think about the mouse - we can click just about anything in a computer, but we pretty much click nothing else in the physical world - the click is a metaphor unto itself!

What if when you tap on the screen and (yes actually) make the sound "bing" to nudge something to the left it's called binging, and when you do that with the sound "bong" to nudge right it's called bonging, and if you tap and say bing-bong to select it it'scalled bing-bonging? I find "tap and hold" anti-intuitive; what if you bing-bong instead of doing that tap and hold that can accidentally deleted apps from the phone?