Meet the Sony MP-CL1 Mobile Projector: a pocket-sized projector that lets you turn any room into viewing area. It is small enough to fit in your pocket and has 2 hours of battery life. It lets you project your favorite movies, games, and TV shows wirelessly. It offers 1920 x 720 HD resolution. The screen size is adjustable from 40″ to 120″.
The MP-CL1 projector has USB ports and a headphone/speaker jack. It can charge your mobile devices too. More information is available here.