As noted by MacRumors, Apple has released a few minutes ago the third beta of iOS 5.1 to developers. The new beta comes almost a month after iOS 5.1 beta 2, which was released on December 12. Currently, it appears beta 3 is only showing up as over-the-air update with the Developer Center still reporting beta 2 as the latest available.
The new beta carries build number 9B5141a. The first two betas of iOS 5.1 brought bug fixes and minor new features to the operating system, and it’s still unclear whether Apple may be planning to add more functionalities throughtout various betas seeded to developers.
We’ll update this post with relevant information in case it becomes available. iOS 5.1 beta 3 should become available on the iOS Dev Center shortly.