small projector

http://www.engadget.com/2008/11/11/olens-technology-adds-another-projector-to-endless-stream-of-pro/

I always imagine there is a projector can easily project and share what I am watching on my small media player (like my ipod video again) to a wall (or the back of seat). Ideally, 2 devices are the similar size. I think that's a quick way to show and tell (and share).