Will they really though? Let's pretend this technology hits smartphone levels. Its suddenly everywhere. How do you know if the person takes a picture or is just looking? Will that be the new social interaction, a world where you constantly check for subtle clues that a person is recording you? What if you aren't facing them? What if you're not thinking about it? There's so many new developments that brings up. The smartphone changed how we worked; the 9-5 day died with the smartphone and now you no longer have isolation in the social sense. So what happens when we can no longer escape the job of behaving "properly." The dumb hemisphere doesn't judge you. I've worked those shitty jobs. Nobody behind that camera cares about you, but if its attached to someone's face? They care a whole lot. I'm not arguing against Google Glass. Hell, i'll buy one. If its safe i'll also probably use it for less than legal purposes. But there are changes that come from a society with perfect memory, and they're so vast and complex its hard to understand.