A radio that is able to change a broadcast depending on where you are and what you are doing has been demonstrated by the BBC.
The Perceptive Radio, produced by the corporation's Future Media North Lab, is thought to be a world first.
The team produced a computer-generated radio drama where the script altered depending on factors such as weather.
You can experience an online version of the techniques at - http://futurebroadcasts.com. But I found it only worked in Chrome.