Blizzard Announces Hearthstone: Heroes of Warcraft
Well this is a bit unexpected. Mostly because there's already a World of Warcraft TCG but Blizzard's own CCG title is an online Card Game, different from the printed cards that Cryptozoic made.
So far it seems like it would be a pretty fun and fast game to play. It doesn't take much of your time and the art is definitely beautiful(some are taken from the WoW TCG). Beta registration is already open, and you can check it out here: http://us.battle.net/hearthstone/en/