Ever been to art gallery or museum where you can hire a set of headphones that explain to you interesting information about pieces? The ones I've used read out information about pieces using a id on the piece which you enter into the headphones.

Story navigator can work with geo-location enabled and as you walk through an area - neighbourhood, forest, city - the app will start narrating places of interest as you near them. In tour mode it can also direct you along a predetermined path and narrate to you as you go. In the classic mode you can simply select an item from a list to hear history or story about that area or thing.