Is there a stereo camera module that would work with raspberry? Did anyone try to do synced video with raspberry in some way?
The RPi compute module (note: not the regular RPi) has two CSI camera ports, and implements stereoscopic capture. On a regular RPi, however, you'd need to resort to a couple of USB webcams (preferably ones that implement video compression themselves to save the CPU doing any work). Unfortunately, without some means of syncing them externally they'd gradually drift, and I'm not currently aware of any mechanism to synchronize USB webcams.