Quad core Core 2 Duo works in Mac Pro

That's a Mac Pro with 8 processors. Ok, so it really is only 2 processors with 4 cores each, but I bet that thing screams. The good folks at AnandTech just happened to have an engineering sample of Intel's forthcoming 'Clovertown' processor, and they thought, 'I wonder if the Mac Pro mother board can run with this.' So they swapped the processors out, and OS X didn't bat an eye (nor did the hardware).

This doesn't mean that you'll be able to upgrade the processors yourself, but it is a step in the right direction.

Thanks to everyone who sent this in.