Microsoft's Surface, the touch-sensitive, light-sensitive display scheme that will soon rule our lives, has many uses, but the newest one we've heard of is the best: It will get you drunk.
Specifically, if a saloon has a SurfaceWare table or bar, it could keep track of how much liquid is in your glass in real time, and send a waitress over when you're a quart low. That way, you need never face the unbearable heartbreak of an empty Rock 'n' Rye ever again. Our hearts say "rad," but our livers say, "Oh, no!"
Check out how the thing works in the video below: