This cooling solution allowed an Intel guy to overclock a 3.06GHz X9100 mobile CPU to 4GHz! The temperature of the chip was only 50°C by the way.
Using the highest-speed dual-core Penryn mobile chip, currently clocking in at 3.06GHz (X9100), and knowing that the XE models are multiplier-unlocked. Intel's Dan Ragland used the Extreme Tuning Utility (Iron City) to overclock the laptop's CPU to over 4GHz, stably. He commented that the notebook-cooler added around 500MHz over and above what's achievable by using the laptop's cooling alone.
Interestingly, the quad-core model, QX9300, shipping at 2.53GHz, can be overclocked to around 3.5GHz using a large laptop chassis and the CoolIT cooling, Ragland said.