In the Q3 2012 press release, Apple has confirmed that OS X Mountain Lion is launching tomorrow, July 25th. The OS will be available on the Mac App Store at $19.99.
OS X Mountain Lion is a major upgrade to Apple’s desktop operating system which includes over 200 new features that further ties OS X into iCloud and brings many important iOS applications to the Mac. Major new OS X features include apps such as Notes and Reminders, Messages, Game Center, the Notification Center that works similarly to iOS, Gatekeeper — ensuring that users stay safe when they download and install applications, Dictation, and Power Nap for compatible Macs.