Wow, sounds familiar, OS X being the core OS of Macs, the iPhone, iPod Touch, iPad and Apple TV, and they can all share movies and many apps together.
With storage in SkyDrive, you will have access to all your files on whatever device you want.
Sounds familiar again, like Apple iDisk about ten years ago. The online storage looked like just another mounted volume. For the future with Mountain Lion, any application can use the iCloud APIs to integrate iCloud storage into the app, and iOS 6 is doing the same on the iDevice end. This is just presenting to developers what Apple has been doing with its own apps since last year.
Those that do not "get" Windows 8 are still thinking with a mouse and keyboard.
Funny, this is what we were telling Microsofties about the iDevices years ago. You didn't believe. It usually takes Microsoft a bit to grasp the concept and crank up the copiers.
I expect Apple will merge iOS and OSX down the road
First, iOS and OS X have shared the same core from the beginning, and even the iOS programming API (Cocoa Touch) is a touch- and phone-tweaked version of OS X's Cocoa API. They're already almost the same OS. Steve Jobs had an internal competition before the iPhone to determine the OS it would have, and the team that built iOS from OS X won.
But as far as the user experience and integration, this has been obvious to any industry observer for about a year and a half now, ever since Lion was previewed with iOS-like features. The Mountain Lion previews for the last months have shown a big leap further in that direction. However, I do hope they stop short of total integration. Desktop and mobile use cases are just too different to have the exact same thing on both. I refuse to hold my hand up to a monitor for hours on end, tapping and dragging on the screen. You'll be able to tell the hard-core computer users by their huge right-arm biceps.
That's why Microsoft is far ahead on gesture control (Kinect) so you never have to touch the screen.