As we reported earlier, Apple has seeded iPhone OS 3.1 Beta 3 to developers. Not much has changed since the last build (Beta 2) which was released on 15th July 09. Some of the minor changes in iPhone OS 3.1 Beta 3 include.
Apple has seeded the latest Beta 3 version of iPhone OS 3.1 Build 7C116a along with a newer version of iPhone SDK 3.1 Beta 3 Build 9M2808 to iPhone Dev Center. Members enrolled in the iPhone Developer Standard or Enterprise Program can access the development bits for iPhone OS 3.1 Beta 3 by signing into Apple Developer Connection.