From PARC, the mobile phone as tour guide.

"Palo Alto Research Center, or PARC--the Xerox subsidiary that was the birthplace of the computer mouse, the graphical user interface and Ethernet--has developed a mobile application [code-named 'Magitti'] that offers up information that would be useful to a wanderer--things like shops, restaurants and event listings based on your location (via the GPS device in the phone) and the time of day, as well as your preferences and past behavior."