Article taken from GamingOnLinux.com.

Looks like Nvidia are stepping their game up, they announced Nvidia GameWorks recently and one their videos specifically mentions Linux support.Currently, PhysX under Linux is done on the CPU not the GPU like on Windows. With the GPU doing the work for PhysX on Linux in the future games that use it should perform better.One of their official forum moderators did confirm in 2012 they were working on porting GPU-PhysX to Linux here , looks like it is finally happening.In this video below showing off WaveWorks, part of GameWorks which is aimed at giving developers cinematic-quality ocean, the voice-over man mentions it is being worked on for Windows, Mac OSX and Linux. Go to 1:55 to hear it.https://www.youtube.com/watch?v=YZoKWoftaIsThere is also FlameWorks:https://www.youtube.com/watch?feature=player_embedded&v=lyVLfySxOO8The point is this all uses PhysX, and it will support Linux.