Further penetration into Itanium space would be possible with a glueless 16P system, but I agree it is overkill for the moment. Is anyone working on a coherent hypertransport switch to allow >8P with current Opterons? I think Sun hinted at it, but I haven't seen any real reports.
"Furthermore, why introduce a DUAL Core, when the Single Core alone is capable of defeating everything what the Gonzilla is producing?"
Because just like someone else quoted the weather.com admin saying, many decision makers would happily take the INTC product if it is close to equal even if it is more expensive or not as fast.
AMD needs every advantage it can give the OEM to entice customers to change that viewpoint.