> the 9700 Mobility in the G4 PowerBook comes in both 64mb and 128mb varieties.
> Are both supported by the same driver, or is a separate driver required for the
> 128mb 9700 Mobility video card?

A look into MOSSYS:Devs/Monitors/ of your very own MorphOS installation should answer your question.

> I wonder if the 3rd party 1.8GHz G4 for the PowerMac will be able to compete
> with the 1.6GHz to 1.8GHz X1000?

And I wonder if 3rd party CPU upgrades will be supported by MorphOS at all ;-) Btw, according to Trevor Dickinson in Essen the X1000 will be clockable up to 2.0 GHz simply by software which will be provided with OS4. So the X1000 would most likely be operated in a range from 1.8 to 2.0 GHz, not 1.6 to 1.8 GHz.