Mountain Lion is designed to provide seamless integration with iOS devices
Notification Center lets users see all their notifications from OS X and third party apps in one place
iCloud keeps content synchronized across devices
Having released OS X Mountain Lion (10.8) to developers earlier this year, Apple had already let much of the new features of its Mac operating system out of the bag. At WWDC, Apple has revealed the ninth version of OS X will be available for download from next month.
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