It is available on the App Store the Doom Classic for iphone and ipod touch.

We’ve tried and I must say that it is very easy to play and sense of fun is tremendous, since it is easier to play than other versions of first-person shooters. Since that point there is no up and down the screen is highly appreciated the fact only have to turn right or left, change weapons, making the lateral move, and so on. A enjoyed, since it is fully configurable, either by joystick or accelerometers.