Apple on Monday supplied developers with a new pre-release build of its mobile operating system in the form of iOS 5.1 beta 3.



From Apple Insider:

The second beta of iOS 5.1 came a month ago, and gave developers the ability to delete individual Photo Stream pictures. In current, public versions of iOS, users cannot delete individual Photo Stream pictures, and must turn off the Photo Stream feature entirely if they do not want a picture to be stored on Apple's servers.

iOS 5.1 beta 3 is compatible with the iPhone 4S, iPhone 4, iPhone 3GS, iPad 2, iPad, and third- and fourth-generation iPod touch.

  Apple issues third beta of iOS 5.1 to developers