Q: They said that the Xbox360 will be "water cooled" isn't that dangerous? What if it breaks? Does it need Maintenance?A: The answer to all of the above is NO! Technically the Xbox360 is NOT water cooled in the sense that PC over-clockers use the word. In reality the Xbox360 will probably be using a heat pipe similar to the G5 based computers on the market today. Heat pipes are completely enclosed, require no Maintenance, and have no active internal components. Essentially it's a heat sink with purified water (or other liquid) on the inside. The water on the hot surface evaporates and rises to the top of the heat sink where it cools and liquefies, dripping back down to the bottom. This cycle repeats it self without the use of any active (electro-mechanical) components. One of the biggest benefit to this is because it is a thermal cycle without any active internal components the cycle continues until the heat source has cooled to room temp, even if the console is powered off! I should note that fans will still be used to cool the heat pipe externally while the console is powered on.
More info about this type of "water cooling" and heat pipes here:
http://www.heatsink-...heatpipes.shtml 
