Semi, it is very hard for me to envision an 80-something watt Prescott in a mobile computer, even a desktop replacement. Guess I'll just have to see one for myself, but I can't imagine a cooling system big enough to handle the heat, yet small enough to fit into that form factor.
Are they going to rely on thermal throttling to control the heat (instead of just using it as a safety net like it was meant to be)? Because if they do, you can kiss the performance on critical apps goodbye.
Tenchu