It would seem that the first-ever iPhone game has been written and is available to download to your Jail-broken device, and true to the natural form of the Microsoft vs. Apple debate, it's all based around blowing up Zunes. Jason Merchant, a clever (and possibly very bored) iPhone hacker has coded a small game app for the phone wherein you target floating Zunes with your onscreen mini-iPhone, and then blast away with missiles. The Microsoft-fanboy-incensing shooter was written in objective C, and obviously requires that your device has had Jailbreak run on it to allow for the install. The creator says he's working on an aquarium app which will allow you to drop fish-food to an underwater iPhone, which pretty much makes no sense at all.
[Via Hackint0sh, thanks Boy Genius]