Google just released its Latitude service for Google Maps on mobile phones. I saw something like this at the Web 2.0 conference in 2008 from Yahoo! called FireEagle, but this service uses GPS and cellphone tower proximity data to locate “friends” and show them on a Google map.
http://news.cnet.com/8301-1035_3-10155946-94.html
Tags: google, gps, latitude, location-based
