I remember watching the event this was showcased on. From Sky a Diving to BMX'ing into the arena to show off Google Glass. From the price to how it looked the wearer I was hoping for better reviews. Still early days IMO.
I can't help but be highly concerned about the risk to people's eyesight. For ages people have complained about eye drain and feeling tired using a pc. Then came hand held gaming devices. Now mobile phones the size of a hand held.