This does not seem real sensitive, but the kids at MIT have been at it again. Using a high speed video camera they were able to amplify microscopic vibrations from things like a pack of potato chips, and pulling the audio in the room back out of them.
Here is a link to a write up on the project, and I think they have a link with some sample code.
http://www.i-programmer.info/news/192-p ... acket.html