Apple has released Mac OS X Lion 10.7.2 with iCloud support and some other enhancements. User can grab the Lion update through Software updates or via direct download link below.
Lion 10.7.2 update is recommended for all users running OS X Lion as it includes improved stability, compatibility, and security constraints for your Mac.
Download OS X Lion Update 10.7.2 Client Combo
Download OS X Lion Update 10.7.2 (Client)
Download OS X Lion Update 10.7.2 (Server)