Yosemite OS in 6 minutes by iMore...

Here is a quick overview of the new Yosemite OS from Apple provided by iMore.

OS X 10.10, better known as Yosemite, is Apple's latest, greatest operating system for the Mac. It includes a new, flatter, more vibrant design, continuity to create a seamless experience with iPhone and iPad, extensibility to let developers hook their apps into the system, and a host of other features.