iOS 7 just went gold master along with the upcoming version of Xcode.
Per The Unofficial Apple Weblog, Apple has released its gold master versions of iOS 7 and Xcode.
The two builds are available to download from Apple’s Developer Center web site. There is no OTA update for iOS 7, so for the time being you must download the IPSW from Apple’s website and do a manual install.
If you’ve had a chance to get your hands on either of these and have any feedback to offer, please let us know in the comments.