MAC OS X Lion 10.7.2 Build 11C62 for Developers
Yesterday Apple has released MAC OS X Lion 10.7.2 (11C62) with iCloud Beta. That means you don’t have to download a seperate iCloud package for Mac. The new OS X Lion update gives a complete new environment to test AddressBook, GraphicsDrivers, iCal, iChat, iCloud, Mac App Store, Mail, MobileMe, Safari, Spotlight, and Time Machine services. This version of OS X Lion allows Developers to test iCloud features like integration with iOS devices and iWork apps as well as their own third-party application.
For more information and installation details Check this link
