Quick: what's more important? Your entire My Documents directory, or your Facebook / Flickr galleries? The answer seems fairly obvious, but for those too proud to admit it, Seagate's got a new hard drive that'll delicately handle both. The outfit's latest line of 2.5-inch mobile HDDs goes by the name Backup Plus, aiming to give consumers one-click backup and the ability to save and share your content on Facebook and Flickr. They'll work interchangeably with both Windows and Mac platforms, and they ship with a new Seagate Dashboard interface that makes all of that "one-click magic" possible. The company's proclaiming that these guys are the world's first external drives to "provide backup for content on soc