i dont think they will need watercooling on a notebook as notebook processor are mostly all ULV (ultra low voltage) cpus, if i m not mistaken, the lower power consumption of a current notebook cpu is only 5.5, thats why there is no need to watercool the notebook and as many says watercooling is not mobile anymore

http://en.wikipedia.org/wiki/List_of_Intel...age.2C_65_nm.29