Oh, here is an idea and nothing but an idea (I am not knowledable enough in the are to make it a statement).
With help from the beautifully Unix based MacOSX, is it not very possible that someone could piece together a machine that runs 4 processors and OSX????
As an interesting point, it takes that machine about 5 times longer to load up the CPU monitor than my G4533 SINGLE processor. I have the monitor up so fast that I can not unhide the dock to watch it bounce before it is loaded so a machine like that would HAVE to be faster than mine if it was to be anything interesting.