I've submitted my latest game to Apple. A mixture of tunnel flying and shoot'em up with procedurally generated levels: Terrain, alien graphics and alien patterns are all generated using pseudo-random numbers. It's universal and the display adapts to the wider iPhone5 screen. It also supports Game Center for Highscores.
I've upadated the game with a 2 player coop mode and less ads: https://itunes.apple.com/es/app/endless-space-shooter/id645456265 edit: I posted the update in the wrong thread... sorry...