After the big reveal of the new Xbox One, it was revealed that the console will have a much more extensive list of voice activated commands that the user could use. The very first one they showed off was "Xbox One, turn on." The Xbox sprang to life and immediately went to the presenter's account.
But wait, there's more! Not only did they reveal that the console is listening to you while it is off, it is also listening for distinct voices. Without powering on it knows what you're saying and even who is saying what. This is pretty exciting technology in my eyes, but prepare for the tinfoil hats to come out any time now.