Like Google's press images for what it calls "Project Glass," the glasses Brin wore while walking down King Street were lens-free with a small, clear prism-like display mounted above the right eye. It wasn't clear if the glasses were completely self-contained, or if they were wired to what appeared to be a smart phone in his left hand. Brin, who has been seen sporting the headgear before, wasn't using them at the moment, though - he said they were out of power.

Oh, yeah, battery life.

It's connected to Bluetooth through your phone -- acting as a notifier and music play as well as the capability to answer calls and check-up on social networks like Facebook and Twitter.

"Wearable computing is a broad term. Technically, a fancy electronic watch is a wearable computer. But the ultimate version of this technology is a screen that would somehow augment our vision with information and media.

"…A person with knowledge of the company’s plans told me that a “very small group of Apple employees” had been conceptualizing and even prototyping some wearable devices.

"One idea being discussed is a curved-glass iPod that would wrap around the wrist; people could communicate with the device using Siri, the company’s artificial intelligence software."
"Over the last year, Apple and Google have secretly begun working on projects that will become wearable computers. Their main goal: to sell more smartphones. (In Google’s case, more smartphones sold means more advertising viewed.)"