On the presentation show of AMD's first chipset created in cooperation with ATI, the 690G, it flexed it's muscles in presenting a quad core Barcelona based PC system together with a pair of R600 graphics cards. The cards were running in Crossfire mode and the whole system was tweaked not for gaming but for calculating computational algorithms. It could squeeze out 10^12 floating point operations per second which equals a TeraFLOP/s (a term that get's quite popular today). AMD didn't seem to be tight lipped regarding the postponing of R600 at this event. At least EE Times and The Register have a good deal more information packed into their articles. At the press center of AMD there is now a press release covering the story.