Apple has just released an update to their iOS 5.1 beta software, bringing it to beta 3. The update is available over-the-air and has not yet appeared on the Apple iOS Developer Portal.
iOS 5.1 beta 3 includes bug fixes and other improvements. It also restores the toggle that allows users to enable or disable 3G in Settings. The restoration of this toggle should help some users improve their battery life by only using EDGE — which is extremely slow and definitely isn’t optimal for a smartphone.
iOS 5.1 beta 2 was seeded to developers nearly a month ago and added the ability to delete photo from the Photo Stream.