updated 12:50 pm EDT, Thu August 23, 2012
Launches in tandem with public release of 10.8.1
Apple is now seeding an initial beta OS X 10.8.2 to developers. The build is listed as 12C31a, and in combo form the download measures 641.83MB. Developers are being asked to test Messages, Facebook, Game Center, Safari, and Reminders, although Apple lists no known issues with the update so far.
The company has only just released OS X 10.8.1 to the public. It's believed that v10.8.2 could be intended to prepare Mountain Lion for integration with iOS 6, which will likely ship next month in tandem with a new iPhone and/or several other products. Apple informed developers about v10.8.2 coming soon on Wednesday.