Vroom is a racing and vehicular-zombie-flattening game for iThings, Windows and (any day now) Mac, based on Shotgun Sunrise and made with the UDK. Drive your big blue truck around three zombie-infested tracks, boosting up half-pipes, catching mad air, and revelling in your extermination of the loathsome undead.
It's not the best quality video, but it's our super cool iOS game that just got submitted to the store and is awaiting review! Feel free to spend two bucks on it when it comes out!