Apple has released the second beta versions of both the iPhone SDK 3.1 and iPhone OS 3.1 to registered iPhone developers. Notes for the new beta of iPhone OS 3.1 do not show any apparent changes from the first beta release, which included non-destructive video editing, support for Voice Control over Bluetooth, and new modem firmware and AT&T profiles. The first 3.1 beta release of the iPhone SDK offered updated OpenGL and Quartz APIs; no major changes are indicated in the release notes for the updated SDK. iPhone OS 3.1 and iPhone SDK 3.1 beta 2 are now available for download from the iPhone Dev Center.
iPhone SDK, OS 3.1 beta updates available

Charles Starrett
Charles Starrett was a senior editor at iLounge. He's been covering the iPod, iPhone, and iPad since their inception. He has written numerous articles and reviews, and his work has been featured in multiple publications.