The big surprise that John Carmack teased about earlier today was revealed during his keynote at QuakeCon 2010.
We all know about how well the id Tech 5 engine runs Rage on the Xbox 360, PlayStation 3 and PC, but Carmack pulled another platform out of his pocket to demonstrate the new megatexture engine – the iPhone 4.
The big stunner is that the game is able to run on the iPhone 4's A4 chip at a full 60 frames per second, while featuring several lighting effects that we associate with modern GPUs. Even more impressive is that Carmack said that the id Tech 5 engine even runs acceptably well on the original iPhone 2G – not just the beefier CPU and GPUs of the 3GS and newer.
Incredibly, Carmack said that the id Tech 5 engine even when running on the iPhone could "kill anything done on the Xbox or PlayStation 2." How's that for amazing progress?