John Carmack didn't actually show Doom 4 during his QuakeCon keynote yesterday, but he did offer a status update – along with the tautological pronouncement that the shooter will be "done when it's done."

"When it's done" will be a little sooner, as Carmack revealed just how devoted id Software is to its development. The mobile games division, responsible for Wolfenstein RPG, Rage HD and other mobile games, has been shut down, to shift focus to big games, including Doom 4. In fact, following Doom 3 BFG, all of id will focus on Doom 4.

This article was originally published on Joystiq.