Velocity Vector
AGEIA Technologies of Silicon Valley is showing off a new hardware physics chip at GDC. Their press release indicates that the chip will be used in next generation video game consoles, but it's unclear what console(s) they're talking about.
Epic has announced support for PhysX in Unreal Engine 3, and an SDK is available from their website:
http://www.ageia.com/novodex_downloads.html