On our weekly organizers call, we discussed software for doing 3D reconstructions from photos. I thought I'd make one list of the options currently available. Please add more in the comments if you know of any.
Free & Open Source Software
VisualSFM and geobduffy's tutorial on it
MicMac my previous note on MicMac MicMac's english documentation Mic Mac can supposedly do orthoimage creation too.
Python Photogrammetry Toolbox is available as a part of
ArcheOS, a livedisk of linux with visualSFM & Python Photogrammetry toolkit installed. Here is a tutorial on its use
Free or limited Free use Commercial Software
Cubify (formerly Hyper3D)