Direct from Blizzard moments ago:
They are also celebrating the Android launch by offering one free Classic card pack to anyone who starts one game in any mode. Google Play link for those in need.
Edit: If a mod could just add AU/CAN/NZ only at the moment in title that'd be perfect, knew I forgot something.
Blizzard Entertainment invites Android™ gamers to a friendly fireside duel—Hearthstone®: Heroes of Warcraft™ is now available for Android tablet devices! Players in Canada, Australia, and New Zealand can now download the game for free on Google Play™, with the worldwide rollout on Google Play and the Amazon Appstore for Android coming in the days ahead.
Hearthstone players on Android tablets have access to all of the exciting features and content available in the Windows, Mac, and iPad® versions of the game—including the recently released first expansion, Goblins vs Gnomes™, which adds more than 120 new cards and an all-new type of minon, Mechs. Players can purchase Goblins vs Gnomes card packs in the in-game shop for gold or real-world currency, earn cards as Arena rewards, or craft them using Arcane Dust
They are also celebrating the Android launch by offering one free Classic card pack to anyone who starts one game in any mode. Google Play link for those in need.
Edit: If a mod could just add AU/CAN/NZ only at the moment in title that'd be perfect, knew I forgot something.