dude, the GameCube PPC chip isn't 64 bit.
Look, i'm all for rumors, but when a "news" site like mercury posts this information as being "leaked" from MS, that's a bunch of crap.
Processors work much better in pairs, not trios. The current G5 processors are hardware limited to a dual-processor internal bus, so the 3rd processor would have to be out on its own and just "in communication" with the other two like it was in a computer cluster...
I've been coming to this site for a couple of months, and so far, the only thing that has been "rumored" and actually come out to be correct was the one thing i was hoping wasn't correctthe mini iPod.
Apple may be working on a lot of things, but let's just say that i haven't been impressed by the direction they've taken in the almost 9 months since the (still fastest available dual 2.0) G5 was released. If they really want to play hard ball with intel and AMD, then it's going to need 3-6 month increases in speed, and i don't mean motorola 1% increases...
Anyway, i just think its sad that you guys are believing anything about this article. The most likely part of it is the blu-ray DVD drive, which is the part they cite as "questionable."
And just to let you know, nintendo is most certainly NOT making money with the gamecube. It's a cool machine, but its not a moneymaker!