Now I know people can emulate Windows or Linux to some degree on Solaris x86 but why should we have to? Solaris x86 is open now, and you can use GCC or the Sun Compiler (also free) to build solid code. It's a waste of CPU cycles (and in effect, electricity) to emulate another OS for something like this.
The SETI search project is interesting but I think most of us who are 'fans' of the Folding@home project see F@h as a bit more down to earth, pun not necessarily intended.

Heck I hate to say it, but has anyone even considered a Java (!) client? Java sucks a lot less than it used to, and RAM is relatively cheap these days.
Anyway, if someone needs some time on a Solaris x86 box and would be willing to do some development, I can provide shell access to one, etc etc.
thanks for your time!
-Matt