Yeah, I remember reading about this a few weeks ago when the company first announced it. While I think the idea is a good one, implementation may not be. SETI@Home and Folding@Home are both optional programs. I fear that, once this is implemented, it will turn into another "hidden network" like Brilliant Networks did within KaZaA a while back. While individuals who are knowledgable about computers will most likely know about the program's use of unused clock cycles, many other people won't, and will install the program without reading the EULA. While I agree it's their own fault for not reading the EULA, I think that many people will become quite upset if/when they find out that their computer is being used by someone else.

AJ