More than one million copies of Mac OS X Lion, Apple's latest, were downloaded on its first day of availability.

The long-awaited update to the Mac OS, which was made available on Wednesday this week, offers a 250 new features, such as support for new Multi-Touch gestures including momentum scrolling, tapping or pinching your fingers to zoom in on a web page or image, and swiping left or right to turn a page or switch between full screen apps.

Furthermore, the OS also benefits from support for full screen apps, meaning you can swipe from one window to another, between full screen apps, or back to your Desktop, Dashboard or Spaces without ever leaving full screen, as well as Mission Control, which provides an overview of everything running on your Mac, combining Exposé, full screen apps, Dashboard and Spaces into one unified experience.

"Lion is off to a great start, user reviews and industry reaction have been fantastic," said Philip Schiller, Apple's senior vice president of Worldwide Product Marketing. "Lion is a huge step forward, it's not only packed with innovative features but it's incredibly easy for users to update their Macs to the best OS we've ever made."

Furthermore, Apple said the OS was fastest ever-selling in Apple's history

Mac OS X Lion can be downloaded from the Mac App Store for £20.99.