It's the first day of Macworld/iWorld 2012 and the new Mac products are beginning to roll out. Western Digital is back with a hot, new Thunderbolt drive, the My Book Thunderbolt Duo. The external hard drive uses the 10 Gbps Thunderbolt port, and supports two 3.5-inch hard drives in a RAID 0 striped array. It'll send data at a speedy 2 Gbps (250 MBps) which will let you send a full HD movie to the drive in 30 seconds. This is fast, but not as fast as it could be because hard drive technology has not kept up with the speed of the ports. Despite this speed discrepancy, the My Book Thunderbolt Duo still beats any USB 2.0 drive on the market. It'd be a perfe
