My new favourite iPhone/iPod game is Canabalt by Adam Atomic. Your little pixel dude is trying to escape what looks like some sort of alien invasion, and he’s running for his dear life. All you can do is choose when he should jump (by clicking), between rooftops, through windows into offices and across cranes etc.
Makes for a quick game, but super fast paced and addictive. My top score is 7927m, see if you can beat that! Also you play it online (free) here »