Face2Face: Real-time Face Capture and Reenactment of RGB Videos [video]
This is insanely awesome. Something that comes to my mind is the use of this for dubbing movies and TV series; I'm very sensitive about correctly syncing what's being said to what we see, to the point where I only watch movies in their native tongue - even if I don't know the language and need subtitles. This could be a game-changer.