Normally, if there is no "hello world" screen, such a claim would be readily dismissed, but when the claim comes from someone as well known as George Hotz, it demands attention.

If you thought last year's Left 4 Dead was good and all, but maybe just a little bit too much on the 'graphic-y' side, then Pixel Force (no relation) may have just the right thing for you -- an 8-bit re-imagining of Valve's apocalyptic, zombie shooter.