I just upgraded to Adobe CS6. The Mercury playback engine and most of the GPU accelerated effects are written for Cuda enabled cards (NVIDIA). I have been using a Radeon HD 6950 and have been happy with the performance and features, but GPU acceleration is a "must have feature" for me. Does anybody know if there are plans to implement the newly open-sourced CUDA code on the Radeon series cards? Any idea of a timeline? I'm starting to feel like buying a new Nvidia card might be the only option.