I was almost about to pull the trigger on a set of these (or the Wrap 920's by Vuzix), but the resolution made me delay with the rumors that the Wrap 920's would have HD resolutions. Turns out the specs changed on release of the Wraps, I guess they couldn't get the cost down enough.
The COOLEST thing I've seen is their "Augmented Reality" line, or AR for short.
http://www.vuzix.com/consumer/products_wrap920ar.htmlThey reference use with Autodesk, and I'm sure you can imagine how cool this will be in the future.