OS X Mountain Lion: The 9 Coolest New Features Of Apple's Newly Announced Mac Software

Apple on Thursday surprised the tech world by unveiling the developer-only preview of what will soon be its newest operating system for Mac computers, OS X Mountain Lion.

OS X Mountain Lion comes just seven months after the release of OS X Lion, an operating system which sought to unify many of the best features of iOS (Apple's operating system for the iPhone, iPad, and iPod Touch) with the best features of OS X (its operating system for the Mac). That unification continues with OS X Mountain Lion, which is being touted as an incremental upgrade to last year's major OS release.

Indeed, the Wall Street Journal's Jessica Vascellaro, who got an in-person preview of the operating system from Apple CEO Tim Cook, titled her report on OS X Mountain Lion "Apple to Bring iPhone, iPad Features to Mac." What's more, Apple's official preview page for Mountain Lion's features reads "Inspired by iPad. Re-imagined for Mac."

So, what new features can you expect on Mountain Lion (available immediately for developers, and in the summer for users)? Below, find out what's making Mountain Lion roar. Then, read on for in-depth hands-on looks at the new OS X upgrade by John Gruber (Daring Fireball) and Jason Snell (MacWorld) and MG Seigler (TechCrunch).

New Features On Mac OS X Lion