TED: MIT Students Turn Internet Into a Sixth Human Sense
blog.wired.com
blog.wired.com
But the technology in the linked article is streets ahead.
Particularly interesting to me is that the MIT people have better ideas on what uses a wearable computer could be put to than I've ever heard of before. Assuming real life and today's technology, that is - I've heard cooler ideas in Sci-Fi.
Projecting a paint program? Useful, but not as ubiquitous as a piece of paper and a pen. Hooked up to a mobile so you could bluetooth the picture to someone else? Better. Projecting a live, dynamic map? Very ... social. Moreso than the eyeglasses wearable devices.
A nicer way to interact with your environment, I'd think, especially as when processors get stronger you could handle an entire virtual 3D environment overlaid over one eye.
One solution could be doing some kind of retinal projection. You could adapt the optics in real time to compensate the eye's focus, and you would have a UI stamped into your normal vision at all times. The real problem is technology because, AFAIK, such systems are currently too big to be used in our day-to-day lives. ( http://en.wikipedia.org/wiki/Virtual_retinal_display )