Chinavasion seem to offer us something pico in size but big in deeds. The CVOB-E72 is not only Wi-Fi (802.11 b/g) capable but also runs on Linux 2.6.10 as well as coming with a wireless keyboard and a mini tripod . So just to assure you it is not just a projector but a portable mini computer in itself. It supports VOB, MPEG1/2/4 AVI, XVID video files, MP3, WMA, AAC audio files and JPEG, PNG, GIF, BMP photo files. As to the storage media, it accepts SD card and USB. It is also equipped with an AV 3-in-1 jack making it possible for you to connect your analog A/V source. Other specs include 640 x 480 Pixel (VGA), 200:1 contrast ratio, 10 LM brightness, projection up to 70 inches and 1.5W speakers. Equipped with internal rechargeable li-ion battery, it promises working up to 3-4 hours (depending on use) with 4 hours of charge.

It is offered at $267.76.