Following today's media event, Apple has seeded the golden master (GM) version of iOS 7 to developers. This represents the final build that will be released to the public on September 18 for installation on existing devices. iOS 7 will also be included on the iPhone 5s and iPhone 5c, which launch in the first round of markets on September 20.
Article Link: Apple Seeds iOS 7 Golden Master Build to Developers Ahead of September 18 Public Launch