Nikon coolpix 1000pj shown at IFA 2009, it has got a built-in projector!
The 1080p projectors are getting really affordable. This one has 2000 ANSI lumen, 40'000 contrast ratio, HDMI and Component input (of course).
Review showing this very compact and light 3LED projector, one of the first in the world with built-in USB host functionality to playback DivX mpeg4 files from a USB flash memory or from a FAT32 formatted hard drive. It has great colors and performs great for its size. Having a built-in USB reader means you can play movies on it directly without the need to use a computer or a video player device to playback the video formats. Yet the BenQ Joybee GP1 mini projector does not yet support Mp3 audio nor AC3 audio in DivX/XviD Mpeg4 files, thus audio contents has to be re-encoded mostly thus far to the PCM or the AAC format. BenQ can update the firmware so I will update this description if I hear any confirmation by them that they are adding Mp3 audio support on it.
These type of super compact 3LED projectors are getting cheap enough, bright enough, sharp enough, with very nice colors and easy to use enough so I think that it may become a very popular product.