I was under the impression that CUDA is pretty much an nvidia-specific proposition. This is a great shame because it seems there is a bit more activation energ

I was under the impression that CUDA is pretty much an nvidia-specific proposition. This is a great shame because it seems there is a bit more activation energy required for opencl projects (AMD's BLAS is great but I don't see it being used anywhere near as widely as Cublas, and there was no Mac support last I checked). Are there options for getting CUDA going on an AMD/ATI chipset?