I think the reviewer has missed something fundamental about the PhysX card and the implementation within games.
The simple fact is that until the PhysX card makes a ground breaking impact on game play, not just on aesthetics and effects but a real impacting next generation style impact, it will remain as a luxury item for the enthusiast with too much money.
There will be no games developer worth their own pennies that will create a game that is solely reliant on something like the PPU. They simply will not sell the units to justify taking the risk on a 'nice idea' like the PhysX card.
In my opinion it is going to take a totally revolutionary game to launch the PhysX card, a game that is truely next gen in its game play not just additional particle effects, and unfortunately I don't see UT3 or any number of half produced free games (there is a reason why they are free) from Ageia bringing that about.
Where do I think that they could really succeed? If they did whatever it took to integrate the PPU into a medium to high end set of graphics cards or motherboards. Currently Ageia is missing the proverbial barn door in trying to do it themselves. The Author mentions that he thinks that the PhysX card is coming into it's own and that there are a whole raft of new games coming out that supports the hardware. How many of those games actually gain a major difference in gameplay when untilising the PPU? Very very few if any - why? Because game houses want to sell games not cut their own legs off before they even get started.
/Rant Over.