Quote Originally Posted by j_factor
The Jaguar's 68000 is in no way its main CPU.
The 68k is the only general purpose processor in the system. There's no way it can be anything other than the main CPU, since the rest of the chips are just GPUs and DSPs. Calling the Jaguar a 64 bit system because some of the support chips are 64 bits is a little like calling the Genesis an 8 bit system because it has a z80 for a sound processor.

Personally, since there's no real rule for determining how many "bits" a system is and since it's meaningless as a way of measuring the capabilities of a system anyways, I don't really care either way. It's just marketing nonsense to make console A look more powerful than console B.