There's a scene in Demolition Man where Nigel Hawthorne's character is having a teleconference, and the screens swivel around to follow him around the room -- that was pretty heavy stuff back in 1993. The logical endpoint for that kind of technology? A room following Skype bot.
This is "Skype Got Legs" -- my inner pedant screams that they're wheels, but whatever -- a robot built by Hackaday user Pritt that includes the ever-useful Arduino motor, and, surprisingly, synthetic wine bottle corks. [Hackaday]