Apple has released the third beta versions of iPhone OS 3.1 and the related SDK. The new beta operating system is listed as build 7C116a, while the updated SDK is listed as build 9M2808. It is currently unclear what changes are present in these new beta releases; however, Apple is expected to make certain video APIs accessible for third-party developers in order to support augmented reality applications on the iPhone 3GS. Both the updated beta OS and the updated SDK are available now to registered iPhone developers through the iPhone Dev Center.
Apple releases third beta of iPhone OS 3.1, SDK
