id Software has released updates and the source code for Wolfenstein 3D Classic Platinum and DOOM Classic on iOS. Updates include universal apps with iPad and Retina Display support, revised user interface with a re-mastered HUD and all new menu art, re-mastered sound from the original MIDI source files, locked 60 fps for Wolfenstein 3D Classic Platinum/Lite assorted bugfixes and much more. You can download the prevalent files through here. Back in August during QuakeCon, John Carmak said id plans to release the DOOM 3 source code this year, once RAGE is out the door. Thanks, Joystiq.