The AGEIA website has an interview with Jeremy Stieglitz of Artificial Studio. They unsurprising ask about how Artificial has made use of AGEIA PhysX hardware.

AGEIA: So what's the best part of CellFactor for you now and what can we expect in the future? I want some new levels to play!!

JS: Off the top of my head, I love getting 'physX Kills' by crushing a player with a huge shipping container, causing gravity vortexes to trigger gigantic chain reactions, or shooting up a leaky barrel to cause a huge explosion. It usually takes a newbie a few violent oil barrel deaths to catch on.