updated 03:05 pm EST, Thu March 3, 2011
Essential for iPad 2 launch
Apple has begun seeding the iOS 4.3 gold master to developers by way of the iOS Dev Center. Separate downloads are available targeted by device, including the iPad 1, iPhone 4, iPhone 3GS, or third- or fourth-generation iPod touch. The iPad 2 is missing from the list, but only because the tablet will ship with the firmware pre-installed.
Also intentionally omitted are pre-3GS devices, which Apple has confirmed are no longer receiving new updates. Unexpectedly left out is the Apple TV firmware, which was regularly updated during the v4.3 beta period. It does have unique technical requirements however such as different menu and control systems.
Several significant upgrades are being implemented in v4.3. These include support for AirPlay streaming from websites and third-party apps, and Home Sharing, which allows people to access media hosted on a local Mac or Windows PC. The firmware will also enable personal hotspots for non-Verizon iPhones, subject to carrier compatibility.