Apple has seeded the golden master version of OS X Lion to developers ahead of its public release sometime this month (July). The golden master download is available from Apple’s Mac Developer website. The build number is 11A511. In addition, Apple has seeded Developer Preview 7 of Xcode 4.1.

OS X Lion brings many innovations from iOS including home screens (called Launchpad in Lion), autosaving, full screen application interfaces, and auto resume in apps. This is in addition to native support for the Mac App Store, Mission Control, an all new email client, built-in FaceTime, and interface and feature improvements through out the operating system. Lion also includes AirDrop file sharing, multi-user remote computer access, and Find my Mac (through iCloud).

Apple is yet to announce a release date for OS X Lion, but we do know that it is coming sometime this month on the Mac App Store (exclusively) for $29.99. Apple is gearing up to ship an upgraded MacBook Air line in mid-July – with OS X Lion preinstalled. Perhaps Apple’s next-generation Mac operating system will launch then, too.

This golden master download is also available for the OS X Lion Server edition. For developers, both golden masters can be found on the Mac App Store. You will need to grab your redemption code form the developer program to access the download.

In addition to OS X Lion golden master and Xcode 4.1 Preview 7, Apple has also released beta 3 of iCloud for Mac. This update is required for OS X Lion GM users who wish to use iCloud with their Macs.

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