David Pogue of New York Times has reviewed, Pico which is a pocket projector from Optoma. The review is quite entertaining(he projects the images on to a plane's ceiling leaving passengers baffled) and detailed. But if you don't want to read through 2 pages of the review here are the highlights.
Full technical specifications are available on optomas site. Overall this seems like a killer product which has a very good chance of becoming a blockbuster and as more competitors enter the market we can expect the prices to fall.