But what's all the fuss about? Well, Hearthstone: Heroes of Warcraft allows players to engage in card duels against real or AI opponents. As you may have guessed, the collectible cards in Hearthstone feature heroes and characters from the Warcraft universe - Arthas Menethil, the Lich King, Thrall, and Jaina Proudmoore are all aboard along with the regular orc peons and death knights.
Blizzard revealed that it has developed an iPad version of the game due to the constant demands of a portion players, who insisted on duelling with cards while on the go.
Blizzard also revealed that their Warcraft-inspired card game will become a universal iOS app and will land on Android “in the future”. A version forWindows RT-powered tablets is under development, as well. Hearthstone versions for these platforms are currently being worked on and will be most probably released, in a Blizzard-like fashion, “when they are done”.
source: Blizzard via Engadget