If you read anything regarding the G3 and what IBM expects to do with it you might come to the conclusion that I have.
First, why would Apple move the iBook to Moto's G4 and jump back into that headache just as they are starting to shed it?
Second, IBM has pretty major plans for the G3--that stay pin-compatible with the current line--that will make the G3 a BETTER processor than Moto's G4. And this is especially true for portables. You can find stuff on IBM's website showing what they want to do. A couple of notables would be speeds over 1 Ghz, support for faster bus speeds than the current G4 and the real beauty, Altivec...which would do what, say it with me...make it a better processor than Moto's.
And when you consider the fabrication capability differences between IBM amd Moto I think the decision would be an easy one to make.
But then again, this is just my opinion, and hope.
Later,
Eddie