Today Apple took the wraps off of OS X Mountain Lion (I know, we should have saw that one coming) and continuing with the movement started with its predecessor, OS X Lion, it borrows heavily from iOS.
In fact, you could say that OS X Lion's iOS implants were rather mild compared to what Mountain Lion plans to offer. Apple is obviously serious about completely combining the best elements of iOS directly into its desktop operating system, and no where is this more evident than with Mountain Lion.
Like times past, Apple has released a video teaser outlining various components of their upcoming OS X update. You're already aware of one of them — iMessage — but what are the others?