Photosynth

I've had a play with this technology already, it's really good (IMO). What is it, you'll have to skip over to Photsynth to find out fully, here is a taster:

The Photosynth Technology Preview is a taste of the newest - and, we hope, most exciting - way to view photos on a computer. Our software takes a large collection of photos of a place or an object, analyzes them for similarities, and then displays the photos in a reconstructed three-dimensional space, showing you how each one relates to the next.