probably the best place to announce a card game, bravo blizzard,
but yea the game is called "Heartstone Heroes of Warcraft" and apparently its a super small project being only worked on by 15 people at blizzard.
theres is a bunch more details of the game on the polygon story that if your interested id encourage you guys to read it,
but it is launching on Windows and mac and IPad very soon and you can sign up to be part of the beta on the official website
and heres a dev diary of said game
card game be dammed, good on them for getting to do something a little bit different.