xbitlabs picked up the exact same info as CNET, but about two weeks earlier. Overall I think xbitlabs is a pretty reliable source:
The products will be branded as Pentium M 755, Pentium M 745 and Pentium M 735 respectively. The new Intel Pentium M processors will contain 140 million of transistors and will devour about 21W of power, sources told X-bit labs. Such power consumption is lower compared to today’s high-end Pentium M by about 3.5W, though, the information contradicts data from some notebook makers, who believed that Dothan will be more energy hungry
There has been rampant speculation that Intel's 90nm process is to blame for the Prescott Pentium 4's excessive power consumption, but I suspect that this has more to do with the fact that Prescott has an enormous amount of logic transistors due to its 31-stage pipeline (39 stages if you include x86-32 decoding) and the fact that some of these transistors run at 6+ GHz (simple ALUs are running at 2x core clock). Intel keeps maintaining that the 90nm process chemistry is fine, and Prescott steppings keep changing, which leads me to beleive the 90nm process is fine, and that the Prescott design simply wasn't all that great.