OS X Lion 10.7.2 is now available for download through Software Updates and Apple Support Downloads page.
OS X Lion Update 10.7.2 Client Combo
The 10.7.2 update is recommended for all OS X Lion users and includes general operating system fixes that improve the stability, compatibility, and security of your Mac. It also includes support for iCloud, a breakthrough set of free cloud services that automatically and wirelessly store your content on iCloud and push it to all of your devices. iCloud on OS X Lion includes the following features:
iCloud stores your email, calendars, contacts, Safari bookmarks, and Safari Reading List and automatically pushes them to all your devices.
Back to My Mac provides remote access to your Mac from another Mac anywhere on the Internet.
Find My Mac helps find a missing Mac by locating it on a map and allows you to remotely lock the Mac or wipe all its data.
Getting started with iCloud is easy. After installing the update, OS X will automatically present an iCloud setup panel. Simply enter an existing Apple ID or create a new one and then follow the on screen instructions. To learn more about iCloud visit http://www.apple.com/icloud.
For more info, go to http://support.apple.com/kb/DL1459.