Let me ask a question.
If I install this on my iphone and enable it on my battlenet account - what happens if I lose my iphone or it breaks? Can you disable the authenticator once setup?
there are 2 ways of removing an authenticator:
1: log on to battle.net and choose to remove it and enter 2 unique codes
2: call blizzard and have some good proof that it's your account, like the game key and the answer to the secret question and stuff like that