The BBC launch a new series next week about Britain’s coastline. To accompany this, they are releasing guided tours to 39 villages and towns around the coast. The tours come in 3 different formats. The first, a straightforward leaflet which can be ordered. Seocndly, there will be downloadable audio files, to play on your favourite player of MP3s. And finally there are walks delivered via your mobile phone for 12 of them. In this case, the towns have had sings put up around various points with a call number on it. Dial the number and a recorded talk gets played. When you’ve finished and you hang up, the directions to the next point in the trail are texted to you, so you don’t get lost. Great for those who have a phone but have not yet braved the idea of putting files on portable devices.