The Todd Hollenshead interview on VG247 is their talk with the id Software CEO from the recent QuakeCon extravaganza. Along the way he says Microsoft is in the “best position” to launch next-gen hardware, DOOM 4 was not shown because they weren't ready to show it, and that while he doubts RAGE will have an open beta, it will may have a demo. Here's one of his comments on the possibility of a sample of their driving/shooting game: "There could be something that’s more along the lines of a PC demo or maybe a Mac demo that comes out from a test perspective. But really, at this point, that’s speculation."