We have a 3D (stereo) microscope in the laboratory and recently we purchased two Canon cameras to capture stereo pairs.
However, the official Canon drivers are Windows GUI and support only one camera at time. So we had to wrap gphoto so that
everybody could come and grab some nice pairs without bothering with commandline magic and be efficent at the same time. Please, bear in mind that your feedback can improve the quality of the software immensely, so please post into the project forums or mail me (notice though that my spam filters are not very permissive :-)
Cheers!