Developers who have so far installed the beta version are reporting new features in iOS 4.3 including the mobile hotspot feature (just like tethering) that was one of the major features of the Verizon iPhone that was announced yesterday. Though considering worldwide, this feature may be disabled depending on your network / carrier. So we’ll have to wait and see if carriers like AT&T will support the feature.
Its also being revealed that iOS 4.3 beta allows users to stream videos from apps to compatible devices via AirPlay. iOS 4.3 will give iPad users back the option to use the side switch as a mute switch or screen rotation lock.