Following its official announcement at the iPad 2 media event yesterday, Apple has released a pre-release version of the Gold Master of iOS 4.3 for the iPhone, iPod touch and iPad to members of the iOS developer program. This likely represents the last developer-only release prior to the final public release of iOS 4.3 which has been scheduled for March 11th. It is currently unknown what specific changes have been made in this latest version, although Apple highlighted some of the new features in iOS 4.3 during yesterday’s media event and some previews have been seen from prior beta releases. Apple’s iOS 4.3 GM seeds for the iPad, iPhone 4, iPhone 3GS and third- and fourth-generation iPod touch are available now to paid iOS developers from the iOS Dev Center. Notably, although developers were previously provided with a beta version of iOS 4.3 for the Apple TV, a GM seed of the Apple TV iOS has not yet been made available.