Found this cool little Java applet called the Travel Time Tube Map, designed by Londoner Tom Carden via Annie Mole. The map reorganises itself based on the times of travel from the station you select on the map. It isn't the most useful LU map ever but it is cool nonetheless.
This is similar in concept to Geoff's Travel Times map and Oskarlin's Time Travel Map although Tom's map is interactive and is geographically/time based. His other map maintains geographical layout but uses contours to convey the time needed to travel between stations.
Technorati tags: Underground Tube London Maps