Google has unveiled a new feature known as Google Latitude.This free service allows users to track friends and know their exact location.For privacy reasons,Google Latitude allows a user to configure whether they can be tracked on a map or simply give out only limited details like the city rather than the exact location.Google ‘s Dodgeball als offered similar facilities through SMS.But with Google’s Latitude,this service can now be accessed via PC as well.Taking privacy into consideration,Google had announced that it would not store logs of user’s location as well as overwrite previous locations with new ones.For now,this service is supported by several mobile phones including Blackberry’s and Windows phones

http://www.google.com/intl/en_us/latitude/intro.html