Location Services Settings: Location Services settings in the Settings app has been moved to the top-level instead of under General to make it more easily assesible. Compatibility: iOS 4.3 is compatible with iPhone 4, iPhone 3GS, iPod Touch 4th generation, iPod Touch 3rd generation and iPad. Unfortunately, iOS 4.3 will not available for iPhone 3G and iPod Touch 2nd generation, which means that iOS 4.2.1 is the last iOS software update for these devices. It needs to be seen if all the new features and changes mentioned above makes it to the final version of iOS 4.3 and if Apple will surprise us with additional new features. Update: Apple gave a preview of iOS 4.3 at the at the iPad 2 media event where it revealed two more features coming to iOS 4.3: Faster Safari: Apple has ported the Nitro Javascript engine used in desktop version of Safari to iOS so Mobile Safari browser in iOS 4.3 loads Javascripts two times faster.