Just a reminder, the OS stats page probably needs to be updated:

http://seventeenorbust.com/stats/byOS.mhtml

It's missing OS X versions and Haiku now. Would also be interesting to see 64bit-OS breakdown with the new client...

Also, any chance that CPU types might be added in the future? I know mprime is specific to x86, but theoretically there are other PrimeNet-compatible clients out there for other archs right? I wouldn't be surprised if Cell/CUDA/STREAM versions show up eventually