Apple has released the Golden Master (pre-release) seed of the software development kit for iOS 4.3 and iOS 4.3 for the iPad, iPod touch and iPhone. It is available for registered iOS developers.
iOS 4.3 will be released to consumers March 11th.
iOS 4.3 introduces many features such as playing iTunes content via Home Library, improved AirPlay and Personal Hotspot to share an Internet connection via Wi-Fi. More information about iOS 4.3 can be found in this post.
iOS 4.3 will be available for the following devices: iPad, iPhone 4, iPhone 3GS and iPod touch 3rd and 4th gen.
Most likely due to performance issues, iPhone 3G and iPod touch second generation will not receive this update.
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