> cpu0 at mainbus0: 7400 (Revision 209), ID 0 (primary)
> cpu0: 1MB backside cache
> 
> *** Why doesn't it call it a G4?

"G3" and "G4" are names that Apple made up. The code that prints out
the processor type is in the powerpc-generic code, so it uses the
IBM/Motorola names. Maybe there could be an #ifdef macppc in there or
something though.

-- Dan