So I assume you define "new notebooks" as a case redesign? This is a new chip set based on Santa Rosa. It's a full 64 bit MB, faster front side bus, and supports twice the memory with much better graphics They can only give what intel has to offer and this is the best they have for their mobile platform right now. it wasn't just a speed bump.
One might even say it is not a speed bump at all but a "capacity bump". Faster FSB, faster Graphics, higher supported memory, Santa Rosa MB.
Rocketman