New PhysX System Software 9.09.1112, that was leaked from Dev. Support center few days ago, is now available for download from NVIDIA website.

Official Release Notes are also available:

• Includes the latest PhysX runtime builds to support all released PhysX content including Batman Arkham Asylum and others.
• This release also resolves issues with Arabic language installations and occasional simulation interruption on some machines and titles.
• New runtimes for the PhysX SDK 2.8.3.
• Supports NVIDIA PhysX acceleration on all GeForce 8-series, 9-series, 100-series and 200-series GPUs with a minimum of 256MB dedicated graphics memory and 32 CUDA cores. Note: Some applications may have higher minimum requirements.