How to Better Cool Down MB and MB Pro

Intel-based Apple notebooks have been massively modified by mac users, and mostly to cool them down.
The first popular application was designed to slow down fan rotation speed, today CoolBook is aiming to modify voltage and clock-speed of Core Duo CPUs. One can then get a cooler MB by slowing down CPU performance, this should rapidly be translated into increased battery lifespan. According to readers from Xlr8yourmac forum, this application is working fine. It might even be possible to reduce the CPU voltage while maintaining its clock speed. But be careful, lowering CPU voltage might lead to unstable CPU.