Glass isn't a huge social-tech-privacy-reality shift. Also? It's still very far off
Having actually worn an early Glass headset and spoken with its design team, I'm less likely to pull a Chicken Little on the social implications of a tiny camera mounted to a headset.
Did you know that tiny cameras already exist? What's more, did you know that Glass requires users to verbally speak the command to take a picture, or conspicuously tap the headset? And furthermore, did you know that we're a long way from these being a commonplace thing, if they take off at all?