The guys at FlashMobComputing are trying to get thousands of people to bring their laptops or desktop computers to a single place and have them participate in creating a supercomputer! Nice idea, but I'm not sure what actual good it will do - merely to make the top 500 list is nice, but the power isn't realy usable as it won't be around long enough! But this is a good proof-of-concept sorta thing, I suppose. Anyone with a dozen computers can currently boot ClusterKnoppix CDs and make their own supercomputer at home, so this is just an extension of that concept.