With Google Latitude, you can:
Use Google Latitude on your computer
To use Google Latitude on your iPhone, just open your phone's browser and visit: google.com/latitude
To use Google Latitude on your Android-powered device, just open Google Maps and press Latitude.
Latitude is a feature of Google Maps for mobile.
View your friends' locations on a full screen even without a compatible phone or data plan.
You can share your location manually or use your computer's WiFi location. Learn more.
Update! Now do more with Latitude.
Share locations
Location sharing starts only when both you and a friend agree. Invite friends via email or easily add them from your Gmail contacts.
Contact your friends
Quickly contact your friends with an SMS, IM, or phone call. You can also get directions to lead you to your friends.
Control privacy
You can share, set, hide your location - or sign out of Google Latitude - from the privacy menu. You can also hide your location or share only a city-level location with certain friends. For more information, see the Help Center or watch our Privacy Video.
These services are free from Google; carrier charges may apply.