Microsoft ICE (Image Composite Editor) Released (for FREE!)

http://on10.net/blogs/nic/Microsoft-ICE-Image-Composite-Editor-Released/

Microsoft Image Composite Editor (ICE), released today is an advanced, stand alone version of the panoramic image stitching feature found in Windows Live Photo Gallery.
From the ICE web site:
"...shoot a set of overlapping photographs of a scene from a single location, and Image Composite Editor creates a high-resolution panorama incorporating all your images at full resolution. Then save your stitched panorama in a wide variety of formats,... like JPEG and TIFF to multi-resolution tiled formats like HD View and Silverlight Deep Zoom"
More info here: HDView Blog
Download: http://research.microsoft.com/ivm/ice.html