Ward Cunningham and I built something similar with an old Mac mini and an external firewire iSight camera when we both worked at AboutUs a few years back. We po

Ward Cunningham and I built something similar with an old Mac mini and an external firewire iSight camera when we both worked at AboutUs a few years back. We pointed it at the train tracks behind the office and got some cool images of trains as they passed by. I don't think we saved any of the images, though -- it was just a quick after-hour hack project. On a related note, the new Panorama function in iOS 6 seems to turn the iPhone's camera into a slit scanner using the phone's accelerometer for the rotation rate to stitch together a pretty good panorama on the fly.