Skipping Stone is a new title from Gamevil for the iPhone that's about as simple as it gets. You play a rock (excited yet) that is skipping along a stretch of water, and your job is to tap along on the screen to keep the rock going for as long as possible. It's very simple (and can get repetitive, if you happen to have the somewhat manic music up), but like the superior Tiny Wings, it's strangely compelling anyway. Not only are you jumping the rock at a certain rhythm, but various sea creatures will also come along and mix things up a bit, so you might have to tap more quickly or wait for more time to pass.
I think it's a fun game that's worth the US 99 cents that you can
