Wishlist/Rotary Dialer
From Openmoko
So, this is mainly a joke, but it would be an interesting dispay app for the capabilities of the touchscreen environment and is a departure from the standard 'mouse' behavior of most touchscreens.
pseudo-code:
if((init - release - 1) <= 0){ value = null; }elseif((init - release - 1) == 10){ value = 0; }else{ value = init - release - 1; }
with these area values: (num) = positional value black type = display value