We had a brief outage on one of our servers this morning that specifically caused the iOS app to crash upon launch. I am sorry! I know it was a hassle. We solved the problem (in fact, I'm writing this from the CE browser for iOS) and we're looking into how to prevent it moving forward. Thank you for posting here about it, as that was one of our earliest indications that something was askew. Again, I am sorry for he hassle it caused!