As officially announced just yesterday, Apple today has launched OS X Lion, which is now available [App Store] exclusively via the Mac App Store. Priced at $29.99, OS X Lion is Apple's next-generation operating system for the Mac platform. OS X Lion Server [App Store] is also available as a $49.99 add-on to the basic Lion install.

"Some of the amazing features in Lion include: new Multi-Touch® gestures; system-wide support for full screen apps; Mission Control, an innovative view of everything running on your Mac; the Mac App Store, the best place to find and explore great software, built right into the OS; Launchpad, a new home for all your apps; and a completely redesigned Mail app.

“Lion is the best version of OS X yet, and we’re thrilled that users around the world can download it starting today,” said Philip Schiller, Apple’s senior vice president of Worldwide Product Marketing. “Lion makes upgrading a Mac easier than ever before; just launch the Mac App Store, buy Lion with your iTunes account, and the download and install process will begin automatically.”

Source: MacRumors