OpenCL for the CPU?

Hi I want to experiment with WebCL on Windows. WebCL recognizes the GPU but not the CPU, I heard of this problem that NVIDIA does not support the CPU device this is why I will use Lion OS X to develop my web application. I am just wondering if there is a way for NVIDIA card owners to use the CPU device so that I can support also the windows platform.

Cheers,
Alexander

Just install the Intel OpenCL SDK and / or the AMD Accelerated Parallel Processing (APP) SDK in addition to any other OpenCL runtime. The different OpenCL runtimes will add up and not replace each other.