Iray

Iray is out on MentalRay Standalone 3.8.1. For those who own a license you can try Iray on Maya and 3dsmax2011 by copying somme dll. Check the thread about this

Some people like me encounter black render problem because of Cuda problem. You can use the CPU only Iray by renaming the nvcuda.dll in C:\Windows\System32. For now I can't use textures map for some reason...
some test Ive done (CPU only):

win7 64 / Phenom II X6
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12min45