AMD is now offering a free OpenCL for CPU beta download as part of the ATI Stream SDK v2.0 Beta Program. The beta will help programmers to more easily develop parallel software programs and take further advantage of multi-core x86 CPUs to accelerate software and deliver a better computing experience. AMD has submitted conformance logs from its Microsoft Windows and Linux CPU beta releases to the Khronos Working Group for certification.
The full press release is available here, and the SDK can be downloaded here.