Well the comments thread was fun.
And to the “this should be contacts… why would everyone start wearing glasses again?!” detractors: some of us are still squeamish about messing with our eyeballs, thank you very much. And anyway, glasses have become fashion accessories of a sort.

But I concur, with those who have said it, that this sure as hell can’t be voice-activated. It’s annoying enough listening to people shout into their handsets in public. And what if someone else in the vicinity was also shouting commands at their glasses? And they were standing very near to you (e.g. in a packed elevator or subway car)? Eggzackly. So if nothing else google, start tracking eyeball movements the way most sci-fi writers have plainly and painstakingly laid out in the blueprint for the future. Also, you might want to officially roll out those driverless cars, because those are going to have to co-evolve with this tech, for blindingly (haha!!) obvious reasons.