Dell on Wednesday acted on its early tease and launched the Precision M6400, the company's new flagship notebook for professionals. The 17-inch notebook is Dell's fastest ever by using both the Centrino 2 platform and the size to its advantage: the system is Dell's first to use Intel's quad-core 2.53GHz Core 2 Extreme processor and carries four DDR3 memory slots that can each support 4GB of memor
