http://www.wimp.com/invisiblemotion/
The idea is to use it to look at the vibrating of musical instruments as they are played. Has anyone done this? The video says they released the code on their website and I'm assuming its open source, so anyone willing to take up the task could. It seems like you don't need a special camera, any video will do.
I don't know what to do and am not really willing to learn, but I figure someone with the correct skills might be interested in something like this.