Putting encryption into a hard drive is no mere security window-dressing. According to Seagate, any U.S. company that loses a laptop using the Seagate drive in conjunction with the launch security management system from Wave Systems, will not have to give public notification of the loss, even if the data is of a highly confidential nature.
This is cool. Next question, is there a government mandated backdoor that will mean it's all for naught?
PC World - Seagate Ships Super-Secure Hard Disk Drive