NVIDIA announces promotions offering a free copy of Batman Arkham Asylum with the purchase of select NVIDIA graphics cards are now running on Amazon, NCIX, Newegg, TigerDirect, and ZipZoomfly. Word is: "Get the definitive version of Batman: Arkham Asylum with NVIDIA® 3D Vision™ technology support and enhanced GPU-accelerated NVIDIA® PhysX® effects. For a limited time only, purchase a qualifying GeForce GTX 260, GeForce GTX 275 or GeForce GTX 285 graphics card and receive a coupon good for the digital download of Batman Arkham Asylum, PC version." Thanks Ant and FiringSquad. Apparently there are concerns they will exhaust their supply of digital copies of the game, as they say: "This coupon is valid between Sept 15, 2009 through December 31, 2009 or while supplies last."