Blizzplanet reports on a letter Blizzard is sending veteran World of Warcraft subscribers offering them a free copy of Blizzard's MMORPG to give to a friend. This is a full version of the game with 30 days of free play. Word is: "Your friend has to create a WoW account, and once his 30 days expire, his characters and progress is saved for the next time he pays the subscription. There aren’t any restrictions on the accounts created under this 30 days promotion."