iPhone and iPod Touch owners can now download Duke Nukem 3D and Civilization Revolution from the App Store.
Duke Nukem 3D costs Ł1.79 and brings the potty-mouthed hero of 1991 back to life. The controls appear to be broken, sadly, but 3D Realms bigwig George Broussard is talking to the developer about getting them fixed.
Civilization Revolution costs Ł2.99 and appears stuff a wide range of features onto the Apple devices.
Non-3G devices might struggle a bit, but there's a free trial to test the game out with.