As the iPhone stands, with a web app your user interface options are limited to onclick(). No drag, no drop, no respond to the touch to give feedback, nothing u

As the iPhone stands, with a web app your user interface options are limited to onclick(). No drag, no drop, no respond to the touch to give feedback, nothing until until the finger is removed and you get the click. Compare this to just the first few seconds of iPhone experience... 1) Press button to turn on. (no buttons for you) 2) Slide to unlock. (no sliding for you) 3) Enter unlock code, notice how the buttons highlight as you touch them. (no highlighting for you, no click feedback) 4) Touch an icon to run it, notice the feedback highlight (no highlighting for you) 5) Kept my finger down too long, icons are now jiggling (not for you, no notion of how long the finger was down) I took that limit as a challenge and wrote a sudoku player that is designed for click-only. I enjoy the interface more than the traditional web sudokus to the point where I won't play them anymore, but it is limited. I don't support marking (I don't mark) and cheating is trivial (I don't cheat), but within those constraints it is a peaceful user experience. http://sudoku.lunarware.com http://sudoku.lunarware.com if you want to peek