The Mind Factory INC over the last 2 years has embarked to develop a rugged GPS location aware digital audio player. Such hardware can be used in the tourism sector, to allow visitors to gain self quided audio tours without the need of a live guide. The device is worn much like a necklace, and a pair of earphones are used to hear the audio tour. You can find out more at http://www.themindfactory.com/Designs/GPS_MP3/gps_mp3.html