Does BFG Ageia PhysX Accelerator actaully help?

[Bidybag]

I am looking at this:

BFG Ageia PhysX Accelerator
http://www.overclockers.co.uk/showproduct.php?prodid=GX-023-BG


Would this help for gaming and speed up games? Or do they not make much difference at all?

 

[LukeBird]

They're not supposed to really help as in-game physics are not really that complicated yet and any half-decent video card & CPU will be able to cope with them.
I'm tempted for £70 to try one though and just see how true that is