Apple is ready to deliver the big Mac OS X update now. Users can now visit to the Mac App Store, and download the new OS X Mountain Lion immediately. Let’s check out the download link after the break.

It costs US$19.99 as promised. Some users have got the errors while upgrade. So, it’s good to backup all the files before upgrading.

OS X Mountain Lion
Developer: Apple Inc.

Rated: 4+

Price: $19.99 Download