One of my favourite concepts is the increasingly detachable-cephalic nature of the iPhone... it’s basically a removable robotic head.
This isn’t quite the same thing – because the head is in the hands of the human, rather than being attached to the robot (in this case a UAV. Is that a robot?)… but in a way, although it’s in the hands of the human, it’s acting as a dislocated head for the UAV. Neat interface as well. Really intuitive. Basically you’re holding a little microcosm of the thing you’re controlling.