The Inquirer reports that the concept won't be tied into the "1GPU does GPU-stuff, 1GPU does PPU-stuff", but rather sharing a dynamic load. RingBus memory controller is of course, the guilty party for making Physics & GPU sharing a reality. Even better, it will probably not be required to use two same spanking cards at the same time - shelling out 500 dollars for a GPU and another 500 for the "GPU with identity crisis" is really not a great idea. ATI's approach is set at raising the number of sold X1600 boards and getting rid of old R520 stock. Of course, there'll be much more info from ATI when the NDA lifts and Nvidia's non-flexible SLI Physics get some competition. One thing is certain: competition is a really good thing to have!