Apple iOS 4.3 Beta and 4.3 SDK now available to developers
iOS 4.3, the next iteration of Apple’s mobile operation system, is now in beta. Apple just posted both the new version of the OS and the new SDK in the iOS Dev Center. There’s also a beta software update for Apple TV, which will allow iOS 4.3 apps to stream media to your Apple TV via AirPlay.
Also, it looks like the battle over the side button on the iPad — whether it should be a mute button or a rotation lock — is finally over. There’s now an option in Preferences where users can choose either of the two. Engadget, has a screenshot.