A number of customers who recently bought a Mac and are looking to upgrade to Mountain Lion through Apple's OS X Up-to-Date program have been met with error messages telling them their redemption code has already been used.

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Along with Wednesday's release of OS X 10.8 Mountain Lion, Apple released Mountain Lion Server as a $19.99 upgrade on the Mac App Store, while Xcode 4.4 was also provided to developers, and Apple Remote Desktop also received an update.

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Apple on Wednesday updated all three applications in its iWork productivity suite, as well as iPhoto, iMovie and Aperture, to take advantage of new features in Mountain Lion.

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With the launch of OS X 10.8 Mountain Lion on Wednesday, review embargoes were lifted, and tech pundits heaped praise on the value offered by Apple in its $19.99 operating system upgrade.

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With more than 200 new features, OS X 10.8 Mountain Lion launched on the Mac App Store on Wednesday as a $19.99 upgrade from Lion or Snow Leopard.

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Apple announced on Tuesday that OS X 10.8 Mountain Lion, its next-generation Mac operating system, will hit the Mac App Store on Wednesday, July 25.

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In OS X Mountain Lion, iCloud begins to take shape as the smart, automated way to store documents on a per-app, device independent basis, incrementally displacing the local file system that non-technical users have long struggled to comprehend and replacing it with a cloud-based service that connects and synchronizes desktop and mobile devices via the Internet.

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In OS X Mountain Lion, Apple is radically improving the layout of Universal Access features for users who are sight, hearing or motor impaired, and changing the name of its portfolio of features to match iOS: "Accessibility."

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Apple is expanding Game Center from an iOS play into the Mac arena with OS X Mountain Lion, enabling developers to add friend requests, recommendations and challenges as well as unlockable achievements and top score listings.

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AirPlay, Apple's wireless audio and video distribution system, gets an update in OS X Mountain Lion, offering modern Macs with compatible hardware the ability to wirelessly mirror the screen to an Apple TV-attached HDTV display.

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In Mountain Lion, Macs are getting system-wide speech recognition, the same "Dictation" feature Apple gave the new iPad at the beginning of the year. While it works well, it does require a network connection.

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Safari turns 6 in this summer's release of OS X Mountain Lion, offering a new view of open tabs similar to iPad and a new iCloud tab-sharing feature, along with an offline Reading List, new website passwords browser, new privacy settings, and a feature that allows websites to send alerts to the new Notification Center.

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As first hinted in February, Apple's upcoming OS X 10.8 Mountain Lion operating system update will not include support for certain models of Macs with older Intel chipsets with integrated graphics.

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The new Notification Center service of OS X Mountain Lion, a feature borrowed from iOS, goes beyond its mobile sibling to offer a direct way to send tweets from the desktop. It does not however have iOS 5's live ticker updates for widgets such as Weather and Stocks, something OS X presents in Dashboard instead.

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Shortly after seeding the Golden Master release of OS X Mountain Lion, Apple has sent an email calling for developers to begin submitting apps for the upcoming desktop operating system update.

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Apple on Monday seeded what is intended to be the final test version of its OS X 10.8 Mountain Lion to developers with no known issues, meaning that the next-generation operating system is all but complete and set for imminent launch.

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With OS X 10.8 Mountain Lion set to arrive this month, Apple's latest operating system will become available at least two months earlier than Microsoft's competing Windows 8.

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With OS X 10.8 Mountain Lion set to launch in July, Apple has pulled the link to download its Messages for Mac beta.

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Apple actively promoted on Monday new Chinese-language features in both OS X 10.8 Mountain Lion and iOS 6 that should help it ramp up sales in the world's most populous nation.

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The next major update to OS X, known as Mountain Lion, will become publicly available for $19.99 on the Mac App Store in July, Apple announced on Monday.

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