I've been asking for years why I can't have animated desktops for my Mac. Like slow-running videos going over a nice land- or city-scape, or whatever. It doesn't seem like it should be a tough problem.
And now I can, but typically it comes first to the dumb Android platform!
On my Samsung Galaxy Tab I have a s computer-animated snow background which is lovely, and where I can change a multitude of aspects of it, colors etc. It will even follow night and day!
That's what ah'm tahlkin' about. Sure, the Mac screen are much larger, but then the machines have like eight super-processor cores sitting about, most of them doing nothing most of the time.