Microsoft Live Labs Photosynth

Microsoft describes Photosynth as software that "takes a large collection of photos of a place or object, analyzes them for similarities, and displays them in a reconstructed 3-dimensional space." Their ultimate goal is to allow this software to work with all photographs on the Web. Think flickr groups based around a location on the planet (a city or landmark), in 3D, where the computer automatically figures out the physical relationship between the content of one photo and the content of another. There are two videos available for download demonstrating the product. (There are six download links but there are only two different videos. Just download one of each in the resolution you'd like.)