From an Interview with Oculus Rift Nate Mitchell VP Product Development

" Is there any involvement or interest from the government or the military?

" Definitely the military. The government…I guess yes because of the military, but I can’t pick a project in my head and say, “The government bought that kit!”
The military uses VR for all sorts of things, specifically training, because it’s much, much cheaper to put someone in a training simulator than to actually run an op or something—whether it’s a medical operation or a combat mission or flight training or driving training. Simulators constantly cost down these programs. "

A natural follow-up might be , "Do have an idea of any specific military program or programs which are suited to the capabilities of the Oculus Rift?"  

 I'll be waiting for that answer. I find it interesting that the OR and Virtusphere are tagged in the same story. The Flying Karamazov Brothers & Their Hamster Ball of Death.

http://www.pcworld.com/article/2053682/oculus-rift-team-talks-steam-support-hamster-balls-and-90s-vr-at-indiecade.html