We're not quite there yet, but pretty damn close:
http://bitcoinwatch.com/PetaFLOPS 967.52
Got there sooner than anyone thought:
http://en.wikipedia.org/wiki/Exascale_computingExascale computing refers to computing systems capable of at least one exaFLOPS. Such capacity represents a thousandfold increase over the first petascale computer that came into operation in 2008.[1] (One exaflop is a thousand petaflops or a quintillion, 1018, floating point operations per second.) At a supercomputing conference in 2009, Computerworld projected exascale implementation by 2018.[2]
