Not bad for an iphone app. It's doom with no keyboard or mouse, or buttons for that matter. I guess if you look at it from a mobile perspective this game shows that it can be a useful little game platform so it isn't too bad next to the DS (after all the iphone 3G will be less than $100 now). So decent, possibly fun games can be made for it. The hard part, getting those games approved by the Apple App Nazis 😀.