This is pretty awesome. They've been working on it for years. It's kind of like having a smartphone interface built into a pair of glasses. Google just put out a video demoing what the actual interface looks like, which hadn't been debuted before. Pretty incredible, being able to fit this into a pair of glasses. I can't wait until they start shipping and refining the product for the consumer.
The the iCrowd: http://www.youtube.com/watch?v=v1uyQZNg2vE