An update on the Battle.net Website offers further details on the Real ID system in the new Battle.net, explaining the advantages of this identification system. Word is: "Real ID is a completely voluntary and optional level of identity that keeps players connected across all of Battle.net. When you and a friend mutually agree to become Real ID friends, you'll have access to a number of additional features that will enrich your social gaming experience in new and exciting ways." A Real ID FAQ has the full rundown. Thanks Big Download.