When Will Mac OS X 10.8 Mountain Lion Be Released?
The next major update to OS X, named OS X Mountain Lion, was announced on February 16, 2012. Mountain Lion is a major step toward integrating the OS X and iOS platforms. Expect further integration for iMessages, Notifications, Reminders, Game Center, Twitter, and AirPlay Mirroring. Apple has also announced significant improvements to iCloud on the Mac. Another new feature to expect is called Gatekeeper, a security feature which will essentially help you install only trusted apps on your Mac.
Apple has not yet provided an exact release date, but has indicated that Mac users will be able to upgrade via the Mac App Store in July 2012 for $19.99.