I'm still a little vague as to exactly what this is supposed to do, but schnee seems to be getting some interesting results with it.
While you're at it, you should check out this great post by nicodemusrat about Gambian Giant Pouched Rats helping humans by finding landmines. It's always great to find a feel-good story about rats. (Psst, to get to the NYTimes link (cute photos) without registering, click here. Don't say I never do anything for you.)