I have said it until I am blue in the face that any engineer with a half decent IQ would be building cheap motherboards based on the IBM Xenon 3.2Ghz CPU which is compatible with PowerPC.
..and you can stop saying it, because no, some random engineer can't go and have a few hundred boards printed up at a decent price. You'll end up with another X1000. (the CPU they're using is PPC compatible too!)
Come back when you have a million pre-orders.
