Well after a 2.5 year run at the top of the Top 500 the Earth Simulator has been toppled by not one but two new clusters!
SGI overtook it with a cluster at NASA and has already been doing useful modelling of hurricanes.
But even that beast is dwarfed by IBM’s Blue Gene which has taken the No.1 spot by almost doubling the Earth Simulators Linpack measure of Rmax when it’s only part built!