we went over this many times before in the old forum
to use the physics chip the programmers need to use the novadex SDK. thats no good for lfs.
and anyway, a duel core system will most likely be more suitable for it (apart from the 128mb onboard ram on the physics card).
the only way this can/will become mainstream is if the card is opened up for developers to plug homebrew physics in. i doubt many developers will want to chuck out years of code. changing physics sdk is a bitch, not only do you have to change a *lot* of code but you also have to learn the new sdk and learn all the tweaks to make it stable (if it fakes the physics, and novadex does)