FYI - make sure you read the full transcribe of what Carmack said, it changes the interpretation quite a bit.
Edge only posted part of what he said. They left out an element where he mentioned issues with the current 360 version and made it clear that he expected all versions to be 60fps, etc. by launch - i.e. this is just a progress report on building the game for multiplatforms, noting that both the HD console versions need further work at this point, the 360 with issues with texture handling, the PS3 with frame rate.
Try to be reasonable... its easier than you think...







