Mobile Gaming: Rolling with Katamari... or your suggestion!

I'm about to buy Rolling with Katamari for my new cell because I really want a fun game to play IGN gives it an 8/10 & blah, blah.... blah.
My real question is, does anyone have another mobile game they'd like to recommend?
I'm just wondering if I'm passing-up anything really exceptional....
No big deal just wonderin....

Tetris, it's hard to beat that.

6'2'', 150lbs.... jNerd has a Posse