updated 04:25 pm EDT, Wed September 15, 2010
Orientation lock changed to mute switch
Several videos showing iOS 4.2 beta 1 running on the iPad have surfaced, shortly after the build was seeded to developers. As expected, the updated OS will bring the iPad up to speed with the features initially added to the iPhone and iPod touch with iOS 4.0. Apple appears to have changed the function of the orientation lock, which now works as a mute button in the first beta.
Users will still be able to lock the screen orientation without navigating through the device settings menu. A virtual button has been added to the iPad's multitasking toolbar, quickly accessible with a double press of the home button.
A video preview posted on AppAdvice shows the multitasking toolbar, which is limited to six app icons in portrait mode. iOS 4.2 also brings AirPlay integration, which can be accessed from the photo utility for streaming images to the latest Apple TV hardware.
The list of features in iOS 4.2 will potentially change as Apple seeds later betas to developers. The final version is expected to be ready in November for the iPad, iPhone and iPod touch.