This is great news, indeed! A powerhouse like the GTX 285 will definitely help showcase the abilities of OpenCL for Apple. (With the fringe benefit of supporting CUDA of course…)
EVGA are now doing 2G 285 cards for the PC - let’s hope this Mac version really does exist and has that much memory. Anyone from NVIDIA willing to confirm details and $$?
They restrict the use of third party hardware. You can’t just buy a 280GTX and plug it into a Mac Pro and make it work in OSX.
The ostensible reason is that the Macs need special EFI bios updates, but those updates are blessed by Apple. So if Apple doesn’t want you to use a certain board, you can’t.
EFI is touted as being superior, but this is a convenient pretense. In practice EFI on Apple products has been used for restricting hardware use, not opening or easing support.