Positively impressed by this hack that transforms the 150€ Xbox Kinect gaming sensor (released this month) into a real-time 3D scanner for PC.
This 3D effect is based on 2 image streams from 2 web cam sensors. This uses computer vision algorithms that are (supposedly) similar to Photosculpt's.
[Edit: Oops the video is gone ]
Of course a binocular PC web cam (be it hacked or not) is a bit limiting in comparison to a full featured camera for a good 3D scan, but I'd love to play with it. Read more in this interesting blog with refreshing ideas about what the future of this could be. (er, some more mature concepts too...)