We Don't Speak Robot: The basic interface between user and machine is a standard RC helicopter-style controller, the dual-joystick kind that has rotor throttle and vehicle rotation pegged to one joystick and lateral movements controlled by the other. But that's where the simplicity ends. Much of the rest of the machine-human communication is conducted through a blinking LED on the rear of the 'craft that speaks in something of a colorized morse code that you, the user, must memorize if you don't want to keep the quickstart manual (16 pages!) next to you at all times. In different flight modes, the blinking colored lights and their many patterns mean different things. Example: When syncing Phantom to GPS satellites, one yellow blink means you have more than six GPS positioning satellites at your disposal. If you have exactly six, you get a yellow blink, followed by red. Less than five? One yellow, three reds. Exactly five? One yellow, a pause, two reds. Switch to a different flight mode, and the language (and color pattern) changes. It's kind of like Richard Dreyfus communicating with the aliens in Close Encounters of the Third Kind with all those blinking lights and tones. That is to say, it's kind of annoying.