petz
Personally, I think AMD is sandbagging big time about the thin and light market.
I dont see AMD holding back anything: They released data yesterday from which everybody can see they have silicon to make a CPU for thin and light possible.
Which they would have done if they had a Tier-one notebook maker asking for it.
They did not, so notebook makers most probably wait for upcoming LV-CPUs to offer a T-L design for the stronger half of the year. Maybe OEMs using these designs will wait a lil bit longer for Windows-64.
Then (and only then) AMD-based Thin and Light offerings will have what it takes to supersede Centrino.
K.
p.s. I am not sure if anybody would follow your proposal and operate a CPU only for lower power-states, let alone AMD releasing a remarked chip for this purpose. Murphy's law, you know..