Google Glass 'prescription edition' makes a cameo at Google I/O

Google I/O is always full of surprises, and we came across yet another elusive bit of hardware on the show floor today: Google Glass "prescription edition". No, it's not actually called that (we made up the name), but what you're looking at is definitely Glass that's been neatly integrated with a pair of prescription glasses -- in fact, it looks a lot like the version of Glass that Google recently mentioned on its blog. We don't really know anything else about this device, but we've reached out ...