It's not flying cars, but it's still pretty cool

Imagine walking into a room of your house and the sun is blaring in, so you press a button and the window becomes opaque. The news is on so you tune another window to your favorite channel, and when that's over you put some music on and the sound is perfectly balanced because your chair sits in the sweet spot between two - windows?

Coming to a home in a ritzy neighborhood near you some time in the near future.