iOS 6.1 beta 4 given to developers ahead of release

For those anticipating another iOS update before the end of 2012, there's a good sign -- Apple's given developers the fourth beta of the iOS 6.1 this morning.
The software, which Apple says simply "contains bug fixes and improvements," went out to registered developers today for testing on their applications and to work out any kinks.
All four beta versions have been light on new features. Apple typically saves such additions for major releases,