Scott from the Tech Report just sent word of a new article where he takes a look at Ageia's PhysX PPU. In typical TR fashion, there's plenty of technical detail, but unfortunately there isn't much performance data due to the lack of software to support the device. Here's our take on the PhysX PPU from a few weeks back.
"I'VE HAD THE CHANCE to spend a few days playing with a PhysX card from Ageia, and there is much to tell, though not much one can do with the hardware just yet. I did find some interesting ways to test the PhysX card, and the results may enlighten us about the prospects for physics acceleration in custom hardware. Read on to get my take on Ageia's new physics processing unit."