Apple has just release thier new iOS version 4.3 for iPhone ,iPod Touch and ipad that is iOS 4.3. But this version of iOS is only for developers. And it is also heared that every one wo wants to use it they can use it on hotspot. It’s available in the iOS Dev Center. The iOS 4.3 beta is available for iOS devices and the second generation Apple TV. This iOS  will support devices who are iPad, iPhone 4 and 3GS, iPod touch 3rd and 4th generation.

Source: Macstories