In a recent development update posted by the Hearthstone team, it was mentioned that the iPhone and Android phone version will only be ready “early next year”. It seems the team is finding it challenging to fit Hearthstone into palm-size devices, but a build is currently being tested internally.
Hearthstone has also been released for the iPad, and Android tablets will get the game before the year ends. I am really curious to see how the team revamp the UI for the smaller devices. An infographic was also showcased, with Hearthstone hitting over 20 million players worldwide.