Today Apple released iOS 4.3 Beta to developers. The final release of the firmware will not be until March some time but until then, we can enjoy a nice preview of what we can see. Currently some of the changes include new multi-touch gestures on the iPad where you can pinch 4-5 fingers on the screen to go to your homescreen. Other changes include choosing how your silent switch acts and swiping up to bring up multitasking. As more of the iOS 4.3 Betas roll in, we'll keep you posted.