I have been wanting to know this ever since they revealed they were playing around with it. This game looks fantastic, and I feel like I am really missing out.
They have a lot of UX hurdles they need to solve in moving to the smaller screen, so they likely won't mention anything to do with concrete dates until they have the design solved.
I can't imagine playing hearthstone on an iPhone very easily. There's a lot of information that needs to be conveyed on the screen, especially when a lot of characters are out. Maybe on one of the giant Android phones.
Well its absolutely a good idea. I like this idea, maybe we can play this game on portrait mode instead of landscape