Geekologie report: "By waving your hand around you can adjust the level of darkness, as well as color hue. I want them installed in all my windows. Apparently hotels are considering them to aid travelers deal with jet lag. Of course hotels could probably save a lot of money and just go with the jet lag remedy I've been recommending for years - a free mini-bar." Joking aside, this really is a beautiful invention and one I can see finally working its way down the foodchain to finally end up in our homes.

See for yourself: