Apple has released the second beta version of iOS 4.3 to its paid developers. Listed as build number 8F5153d, it is unclear what has changed in the new version from the first, which brought AirPlay functionality to Safari and third-party apps, the Personal Hotspot Internet sharing feature, an option in the Settings app to choose whether the iPad’s side switch acts as a screen rotation lock or as a mute switch, and new four- and five-finger gestures…
