A bug in iOS 6.1
that played havoc with battery life and resources on the iOS device and caused excess logging and usage on Microsoft Exchange-based servers when syncing with iOS devices has been identified
, Apple reported on Wednesday. The company says a fix will be made available in a forthcoming update, but doesn't give a firm timeframe. Under iOS 6.1, devices that try to sync with a site running Microsoft Exchange Server 2010 cause errors and problems on both the device and the server.