Fellow ZodTTD.com member Vball has released SdlRoids. SdlRoids is a remake of the classic arcade game Asteroids. It was made using the SDL library and is for the Apple iPhone and iPod Touch. I have added it to the ZodTTD.com Installer.app repo (available in the Community Sources).

http://www.zodttd.com/forums/showthread.php?t=2445