This is a little late, since it happened in April, but I just read about it in, of all places, the UC Davis College of Engineering Alumni Magazine. The idea begind Flashmob Supercomputing is simple: pick a time and place, have lots of people bring whatever computer they own, hook them all up, and make a supercomputer. The thing that caught my eye was that the guy behind this is Greg Benson who was in the first CS class I ever taught. The class was an honors introduction to programming class that I taught using Sussman and Abelson's Structure and Interpretatino of Computing Programs. Greg was one of the stars of the class. He's since gone on to get a PhD and is now an Assistant Professor at USF. And, he does Flashmob Supercomputing.