"If you were worried about how Wolfentstein 3D's controls would carry over to the iPhone and you simply couldn't justify spending the $4.99 without giving it a test drive first, boy do we have news for you.
Wolfenstein 3D Classic Lite is now available at the App Store. The "Lite" means it's free, and it is free because it missing quite a few levels, but that's the whole point of it being free. The Lite version of Wolfenstein 3D Classic contains the first three levels of Episode 1. In comparison, the full version of the game contains six episodes with 60 levels to play through."