UPDATE: Mike J won and should have received an email from me.
If you're looking for something more than a Canabalt clone for your iOS device, try tactical turn-based shooter Call of Cthulhu: The Wasted Land:
The game features nine 3D levels set in the trenches of World War One. The player controls a team of up to six investigators charged with uncovering a deadly inhuman conspiracy underlying the clash of empires of the Great War. Barbed wire, mustard gas and machines guns will prove to be the least dangerous thing that the investigators will encounter as they venture out into no-man’s land to solve the mystery of the Wasted Land. As the game progresses, the player can build up the skills, weapons and equipment of the team to suit their playing style. As well as the physical danger, the investigators must guard their sanity against the myriad horrors that threaten to destroy it.Wired gave the game a glowing review. You can buy a copy at iTunes.
I also have one download to give away. For chance to win, simply comment on this post and include your email so I can contact you if you win. One entry per person. I'll pick a winner on Monday.