It's amazing how many cards we could be shoving in our slots these upcommming days, sound cards, netword cards, video cards, raid controllers, modems, wi fi cards, firewire cards, and now physics cards! It seems un real, there may not be enough slots if you need all those things. Fortunately it's PCI, no surprise though the company, plans to release it's models in PCI 4x once it becomes well accepted. According to the Inquirer: "THE COMPANY behind PhysiX, the worlds first Physics processing Unit told us that it has got the first hardware out of the fabs. The cards are nearly ready and the company already announced that Asus will be happy to sell them to the world. However the company will team up with some other partners before it launches the card." http://www.theinquirer.net/?article=25126
I think that CPU's these days can handle physics well enough without having PPU's, but when they come out i couldnt think of a better company than ASUS to make them! And IF i decide to buy one it sure as hell wouldnt be until they are cheap!