Take a look at the movie below and make sure you watch it all the way through – note the export of the model from photosynth into a stand alone 3D package:
This opens up the possibility of using photosynth as a free 3D scanner, and one that would work on objects up to the building level scale. It seems to be early days but there is a lot of discussion going on around the tutorial here.
If anyone has any more insight do let us know via the comments…
