Here's a film showing what the world may look like when mobile technology is baked into glasses and you no longer need a mobile device to interact with the net. I suspect that this is already perfectly possible, the question is whether we want to buy the concept. One problem that may result is that you will no longer be sure if the person you're talking to is even looking at you at all. They might be reading web pages or checking their Facebook in their lenses. Your class can all be looking at you and appear to be listening but are all in fact somewhere else. Just beware when all your friends suddenly start wearing trendy glasses.
Project Glass One day by Spi0n