I just got it today. The interface is a little clunky on my iPhone 4s (I have difficulty choosing characters, sometimes I have to tap multiple times in several places before it recognizes who I'm trying to select) but it's otherwise pretty entertaining. And hard. I haven't made it past the first level even. I'd imagine an iPad version would be a nice way to play as the graphics are quite nice. Anyway, anyone else had a chance to play with it yet?