Speaking of ESRB ratings, how is this going to get on the iOs devices? Aren't the app store rules against the following:

"This is the perfect setup for a quintessential first person shooter game play experience — you pick your targets, aim your shots, time your reloads, dodge the bad guys, and try and make it through to the end of the level with a better score than last time. Beyond basic survival, there are pickups, head shots, and hit streak multipliers to add more options to the gameplay, and there is a broad range of skill levels available from keep-hitting-fire-and-you-should-make-it to almost-impossible." -JC

(off to go look...)

Sure enough, part 15 should prevent this app from ever getting to the public (see http://photos.appleinsider.com/App%20Store%20Review%20Guidel... ). I doubt Apple has the eggs to tell Carmack no. Time to see if Jobs' moral views outweigh his greed. (edit: BTW, I think his greed will win)