It's daytime somewhere. Philips will let you choose whether or not its daytime where you are with their Dynamic Daylight Window.
Daylight is a concept piece geared towards hotels and the weary, jet lagged traveler. The artificial window allows you to control the amount of daylight in your room, the scenery, and color. A bonus light therapy mode allows you to recharge your batteries after a long flight. Living in gray Seattle, we wouldn't mind having one of these in our home to combat seasonal affective disorder. It's pretty amazing to watch how it responds to your movement, so check out the video below the jump.