Hey, looky here! John Carmack shows off the id's new engine called Tech 5 at Apple's Worldwide Developers Conference 2007...
Fast forward to the 12 minute mark to see the Carmack enter. He doesn't say too much other than mention the megatexture capabilities and that it's cross platform (PC, PS3, Mac, and Xbox 360). Need a higher res version of the video though, but it still looks pretty cool.
There are some more pics at Engadget.com
Video...
http://www.youtube.com/watch?v=HvuTtrkVtns
Im looking forward to seeing what they do with the new tech :)
I love the name of the engine.