AAXA P1 Jr. Pico Projector is the world’s smallest LCOS pico projector with onboard MP4 player. It lets you experience pure entertainment in the palm of your hand. You can connect it to your camcorder, iPhone, iPad, camera, or even to your handhel device to share multimedia, listen to music and play games. It features an MP4, MP3, AVI, JPG, RM decoder, SD-HC Card reader, a rechargeable battery, Composite A/V input, and a 10 lumen output that can produce a 50″ image in low lighting condition. $120.
Check this video to see how cool this gadget is: