John Carmack's extensive keynote topics ranged from programming to graphics to his thoughts on Windows 8. He apologized for Rage on PC and talked about the end of id's mobile gaming initiative. He even talked in-depth about his current project of virtual reality. But in the end, there was too much information to report it all, But now you can watch it.
QuakeCon and Bethesda have made the full 3.5 hours available for viewing. If you think you missed anything, now you can wade through and get the nitty gritty stuff.