GPU support in World Community Grid entering Beta in January.
The September 2011 update to the Help Conquer Cancer project has been posted. In this update, we announce work presented earlier this year at the High-Performance Computing Symposium in Montreal: the development of an OpenCL (GPU) implementation of HCC. This GPU version is currently running in our lab. We are pleased with its performance, and anticipate its eventual launch on the World Community Grid.
From: World Community Grid Help Conquer Cancer forum