I think I've seen the game mechanic you mention in golf games. That's a good one, but I'd rather keep it as another minigame, either on the attack or defense front. Another idea would involve the same trick as the "react" move: add a button that needs to be pressed for a set amount of time. That way, you have the same action to perform, although using a different input.
It's good to hear that it works well enough in most situations, I didn't expect such a positive result.
If the Kindle Fire works, there's hope that most other tablets will handle the game gracefully, even if it's not always ideal.
Edited by Dr. Cossack on April 3, 2013 at 13:21:28