Today an RPM Fusion update brought the 195.36.15 NVIDIA driver and with it the OpenCL and CUDA libraries and headers that I have been waiting months to use under Linux. My desperation for OpenCL was so powerful that I even tried using the binaries provided by NVIDIA... which didn't end well.
Anyway here's a screenshot of the NBody demo
NVIDA's has a bunch of other cool samples on their OpenCL portal
To be honest at some point in the last month I had working OpenCL but I have no idea if it was due to the NVIDIA binary installer or if the OpenCL shared library accidentally slipped into RPM Fusion... but then the library vanished. Hopefully it will stay around until I have time to play with it.