The iOS 5.1 firmware update came one step closer to public release as Apple has launched the third beta version to developers. Nearly a month after the iOS 5.1 beta 2 release, this latest version officially contains bug fixes and improvements. As is usually the case, as developers install and examine the new release more changes will be discovered.
Already it has been reported that the beta 3 version brings back a toggle under settings to switch 3G cellular data on or off. The toggle disappeared in an earlier release, despite the fact that having this option can help save battery life by reverting to EDGE data. iOS 5.1 beta 3 can be updated over-the-air (OTA) or downloaded directly from the Apple Developer Center.