There are lots of reviews of Google Glass out there, but my favorite is Luke Wroblewski’s concise and measured take.
My own audio: Glass has a bone transducer that amplifies audio only you can hear. In practice, it’s imperfect. But the potential is clear.
Social interactions: I forced myself to wear Glass even if I felt uneasy about it, which was in a lot of places. I was downright nervous to have them on in airport security and the casino floor. But even when ordering a coffee at Starbucks, I felt like I was doing something wrong.