ScreenCastsOnline ( has released SCOtutor for Mountain Lion, a new video tutorial app. It’s available at a special launch price of US$5.99 at Mac App Store.

SCOtutor for Mountain Lion takes you through the basics of Mac OS X 10.8 Mountain Lion. Don McAllister shows you how to get the most out of Apple’s new operating system by following this study guide. It’s packed with over two hours of HD video tutorials, organized into 30 lessons.