Well, someone was bound to do it, and they have: MOSFET coolers. Thermalright has issued a press release on their latest cooling innovation. The increasing density of MOSFETs on an integrated circuit is creating problems of localized heat generation that can impair circuit operation. Circuits operate slower at high temperatures, and have reduced reliability and shorter lifetimes. MOSFETs are at risk of thermal runaway. As their on-state resistance rises with temperature, the power loss on the junction rises correspondingly, generating further heat resulting in destruction of the device. That would be aimed at the hardcore overclockers out there.
hmm, kinda weird since most overclocking targeted boards have some kind of crazy MOSFET cooler already. Seems pretty crazy, but oh well, i'm sure it has its uses