Western Digital has begun shipping an upgrade to one of its laptop hard drives, the 2.5-inch Scorpio. Though it is available in other capacities ranging from 40 to 160GB, the new flagship model is 250GB, putting it in direct competition with Samsung's Spinpoint M5. Like the M5, the Scorpio is rated at 5,400rpm, and has a 1.5Gbps SATA interface; W
