Preview at WWDC likely in June, followed by September launch.
Apple Releases iOS 6 with New Maps App, Facebook Integration, Siri Improvements, and More
iOS 6 adds over 200 new features, including Apple's own Maps app, Facebook integration, Siri improvements, Apple's new Passbook digital wallet app, and more. Discussion of the new operating system is ongoing in our iOS 6 forum.
iOS 6 is compatible with the third-generation iPad, iPad 2, iPhone 4S, iPhone 4, iPhone 3GS, and fourth-generation iPod touch. It will also ship on the iPhone 5, which launches on Friday, and on the fifth-generation iPod touch launching next month. The operating system arrives as the golden master build 10A403 for existing devices, and Apple has also posted a special 10A405 build for the iPhone 5 and a 10A406 build for the upcoming fifth-generation iPod touch.