Sunglasses that record everything

Gizmodo links to a BBC story about researcher at HP who have prototyped a pair of sunglasses with a digital camera embedded into them. The camera constantly takes pictures of everything the wearer sees through out the day, though it does have an off-switch for those private moments. The HP sunglasses appear to be an evolution of the technology designed and worn by Steve Mann at MIT and now at the University of Toronto. The HP sunglasses capture additional meta-data to help classify and organize the images.