Hugin is a great Open Source photo stitcher for OSX, Linux and Windows.
Microsoft Research has released Information about a 3D Reconstruction App that runs on Windows Mobile. As far as the technology is concerned hardly anything new. It’s basically the same as Autodesks 123D Catch that is available on severall platforms with the actual image processing happening on the server.
The App looks very nice though, it comes with an acceleromteter supported visual guide that helps the user to capture all required images for a successfull 3D model construction.
Just stumbled upon a free image stitcher by the Microsoft Research Labs. It seems to be very fast and accurate at the same time.
It’s called ICE (Image Composite Editor) you can download it here: http://research.microsoft.com/en-us/um/redmond/groups/ivm/ice/