In a keynote speech at QuakeCon 2010 today, John Carmack of id Software demonstrated an impressive iOS version of its upcoming Rage first-person shooter running on an iPhone 4. Primarily a proof-of-concept at this point, the game was shown using the id tech 5 game engine running at 60 frames-per-second, which Carmack described as a “similar or better frame rate to Doom Classic [and] significantly better than Doom Resurrection.” Carmack…
