Yeah, yeah, some of you cynics have already gone, "pffft" and rolled your eyes but please watch this video:
http://www.kickstarter.com/projects/1523379957/oculus-rift-step-into-the-game
So far it has the support of id software, Valve, Epic games and some other big hitters.
Personally, I think it would be awesome and I hope Beth considers this for it's future games: namely FO4 and TES 6