This wee we announced that NVIDIA release new version of their PhysX plug-in for 3ds Max and now NVIDIA already updated also this PhysX plug-in for Maya. This version has support for PhysX 3.1 and also for APEX Clothing 1.1 and has also compatibility with other plug-ins that use PhysX directly (e.g. Thinking Particles). Release of 2.7 PhysX plug-in for Maya brings new unified exporter and improved PhysX shelf GUI. More details yoo will find, when you follow link at the end of article.
If you want to download, you have to visit Developer Support Center.
Source: physxinfo