Microvision showed their SHOWWX which they described as the world's first laser pico projector. Like all pico projectors, the purpose of the device is to project video from your laptop or iPhone/iPod Touch to a wall or screen. The use of laser technology gives the SHOWWX a few advantages including being always in focus and vivid colors with a brightness of 10 lumens. A cable allows you to output video directly from the iPod touch or iPhone.
Macworld hosted a DEMO presentation showing off 6 of the "best of" products being shown at the expo.