Worldcat Meets Wikipedia: Open Library

I haven't been paying much attention to the announcement early this week about the new demo of Open Library, but I finally found myself on the site of the Disruptive Library Technology Jester, Peter Murray, and he's got a 12-minute screencast of how the thing works.  In a nutshell, to me it seems like Worldcat meets Wikipedia - the idea is to create records about every book on the planet, and anyone can add data about any title.  Not much there yet, but who knows - I'm sure everyone scoffed at Wikipedia when it launched too :-)