Here's a look at Intel's roadmap for mobile computers.
Intel's dual-core Pentium M successor "Yonah" will ship at 1.67GHz, 1.84GHz, and 2.17GHz when it debuts early next year in 2006. The dual-core Yonahs will take on a new model number series. In Quarter 1 2006, the dual-core low voltage clocked at 1.50 and 1.67GHz will be released with the model numbers x38 and x48. In Quarter 2 Intel will debut dual-core ultra-low voltage Yonahs clocked at 1.06 and 1.20GHz.
More info and a thermal design power (TDP) roadmap can be found at Laptop Logic