I carry a little folded up piece of paper in my wallet of the London Underground tube map to help me find my way around the Tube network. It's also helpful to have a map to refer to when there are delays and cancellations on the tube network, and that's more usual than not - or maybe it just seems that way.
I found an underground map for the Apple iPhone, which has been specifically designed for the iPhone's screen size. A single jpg image doesn't work because when the image is optimised for the iPhone, the size and quality of the image is reduced, meaning station names can't be read.
How to use and install on the Apple iPhone
- Download the underground tube network files from this site.
- Import the archive contents into iPhoto.
- Create a new album called something you can remember, such as "Underground" and drag the photos into the folder
- Set your iPhone to sync with that album via iTunes.
- Navigate to your Photos on the iPhone and the album name you created. Simply scroll between each section of the tube network map.
I've also installed a WebApp which shows the current status of the Underground Network.