....because of the cuda tech?
Here is a link to Cuda, Mercury and Premier Pro. http://blogs.adobe.com/premiereprotraining/2011/02/cuda-mercury-playba ck-engine-and-adobe-premiere-pro.html
May explain connection a little better although blog not specific to PS.
Well, just saw an announcement from yesterday. Mercury engine in CS6 now supports OpenCL and OpenGL in addition to Cuda. AMD just announced that their new Trinity APUs were designed to optimize Mercury acceleration utilizing OpenCL. Good news for Mac owners.