Overall, I thought the technology was underwhelming, especially compared to the hype in the media and Google's advertising. The screen is small, the battery is terrible, the processor is barely fast enough to do anything on the Augmented Reality front. I fully expected it to directly connect my brain to the Google-plex, and turn me into some sort of man-machine hybrid that never forgot a face, with the entirety of wikipedia ready to drop in on any conversation.
What I got was a gadget that showed me text messages and let me take pictures without me having to fish out my phone--which is actually pretty great, but not change-the-world-worthy.
(not mention most of the demo videos are fake--there's no way to capture the screen display at a decent frame rate, and definitely not the display and camera at the same time, so be wary!)
I think people (myself included) are misjudging Glass, comparing it against some imagined set of capabilities, and maybe giving it a little too much credit--and fear--than it deserves. Glass is not innovative because it puts a screen on your face. That's been done for 30+ years in industry, military and academia.