Users of iOS devices who haven't upgraded from iOS 6.0 to the latest version
have another good reason to do so: a bug that was causing previously-unidentified data overages
and other issues has been identified, in which an iOS device on iOS 6.0 may re-download media streams over and over, perhaps even while on 3G or LTE connections. The issue, which was fixed in iOS 6.0.1, could conceivably cause users to incur data overage charges. At present, Apple has not claimed responsibility for the bug or any resulting charges.