Apple today announced that
OS X Mountain Lion, the ninth major release of the desktop operating system, is available as a download from the Mac App Store. With more than 200 new features, Mountain Lion includes iCloud integration, the all new Messages app, Notification Center, system-wide Sharing, Facebook integration, Dictation, AirPlay Mirroring and Game Center. Mountain Lion is available as an upgrade from Lion or Snow Leopard for $19.99. ( )