Now that there are over 1 billion smartphones out there, the time seems about right for there to be a next big thing. If Google's Sergey Bring has anything to say about it, the next big thing is going to be a computer you wear on your face. But what's Apple's answer to Google Glass? There's a lot of speculation out there that it might be some kind of smartwach. Does this mean everyone will get to talk into their wrists like James Bond? Or Dick Tracy?