Anybody have any good recommendations for a winter case? I've been taking my iphone snowboarding with me, and so far it's been fine. But last night, it snowed, and my iphone had more condensate on the glass than I would have liked. I would like a case that will keep it dry when I'm on the mountain. Any suggestions? On a side note, it's pretty fun to answer the phone and talk to your friends while going down the mountain! Most don't believe me at first.