Tour guide contents utilized by a user at a travel destination consist of guide information including POI information, map data and the like, and user information including memoranda written by the user. The user can access a contents server from a user terminal, and is able to customize at the contents...http://www.google.ca/patents/US7130742?utm_source=gb-gplus-sharePatent US7130742 - Electronic guide system, contents server for electronic guide system, portable electronic guide device, and information processing method for electronic guide system