Intelligent coconuts are the latest invention to come out of the MIT Media Lab, designed to combat excessive airport noise. They have built-in noise sensors, and will be hung on trees surrounding San Jose International Airport. When they detect a jet coming in louder than it should they use their built-in cellphone to call the airport complaint hotline and leave one of four pre-recorded messages. Check out the clips after the jump.

Sample complaint 1
Sample complaint 2
Sample complaint 3
Sample complaint 4

I can imagine that having to delete hundreds of these every morning from your answerphone could be almost as annoying as living on the flight path of a major international airport. [TripWire]