I just picked up a pair of MyVu Crystal (they sell for $300 at their site, but I got for $180 from someone giving them up) just last night

Though they have no camera built in, I'm probably going to strip down a webcam and mount it onto the HUD glasses. If Introversion creates an augmented reality module for their games, I would very nearly wet my pants in anticipation of it coming out (and don't even want to think about what grossness would ensue should it ever be released). Please keep up the work in this line - I know it might not be a huge user base right now, but man, if Introversion pioneered it... well, it could be huge.
I, for one, would love to lay down in bed with my goggles on, laptop shut on the table next to me, and have darwinians race to battle across my ceiling
-- EDIT --
Oh, and of course, the obligatory Hackers style eyepiece would be required for Uplink!!!