Like it or not your mobile phone may be used to pinpoint your exact location. Google Latitude allows you to make your own network of friends and colleagues mobile numbers. Logging onto Google Maps via your mobile will let you see exactly where members of your network are.
Possible uses include businesses being able to monitor the precise location of their sales staff and on the personal side parents would be able to see where their children were at any time.
Google Latitude will work with these mobile phones:
The service is free from Google but carrier charges may apply.