Blizzard has announced BattleTags – unified nicknames that identify players across all of Battle.net.
BattleTags are similar to the controversial Real ID system (but will not replace it), and gives players a new way to manage public profiles, find and chat with friends they’ve met while playing, form groups and stay connected across Blizzard games, the company said. This BattleTag will be used in Blizzard games, on Blizzard websites and in Blizzard forums. Sadly, your BattleTag is not unique, so multiple players can choose the same name, what will differentiate you BattleTag is a four digit BattleTag code, which combines the name you chose and a unique identifier (Blizzard uses the example AwesomeGnome#3592). As usual, you must adhere to the BattleTag Naming Policy and only one BattleTag can be associated with each Battle.net account.
You can pick a BattleTag now through Battle.net Account Management and use it when posting on the Diablo 3 community websites, although most of the features are yet to launch. Blizzard will test basic in-game functionality (including in-game chat and friends list support) in the next patch for the Diablo 3 beta test. BattleTags will be available to Diablo 3 when the game launches. They will then be integrated into other Blizzard games, such as World of Warcraft and StarCraft 2, at some point in the future.
If you have any more questions, feel free to go over to the BattleTags FAQ and get your fix!