CPU will be marginal at GPUGRID. For certain short workunits we can use CPUs as well, but work will be most likely going in bursts.
Anyway, we are waiting for AMD to fix the OpenCL implementation. It works locally but it is quite difficult to distribute.

Hold on here.
gdf

any news on this topic? OpenCL is becoming more stable in these later releases, and now also intel ships an OpenCL framework...

The project concentrates on GPU tasks. That quote is over a year old. I don't even think that sandy bridge will offer enough to draw the project towards CPU use, but it might facilitate AMD cards and I expect other projects to try to fully utilise these processors. I think Sandy Bridge will be launched on the 7th Jan.