From Winkpass Creations:
"This app is like the Marauder's Map (of Harry Potter fame) for your mobile device!" - danericryan
Friend Mapper will change the way you connect with your friends!
Friend Mapper displays your position plus up to 23 friends' positions SIMULTANEOUSLY! LIVE! (limit 1 with free version).
These positions update approximately every 15 seconds (or less frequently if you so choose) so each linked friend appears to be moving on the map.
Best of all, your friends can view your moving position from their iPhones or from www.amigomapper.com!
Friend Mapper displays your LIVE (moving!) position automatically updated every 15 sec.
Link to other friends running Friend Mapper on their iPhones and WATCH them move.
Hide your position at any time.
Time SINCE last update is noted next to each friend
Use one-touch dialing or one-touch texting with any linked friend (iPhone only). Just touch the friend's name in the list under the map, and the "CALL" and "TEXT" buttons will appear (as long as you have provided a phone number for that person).
You and your friends must be RUNNING Friend Mapper to post location updates. The timestamp next to your friend's name beneath the map shows the last time he/she ran Friend Mapper. While running the app, you should see location updates approximately every 15 seconds.
Also, if your friend has not received a link request, check for typos in the email address.
If you're having any problems, please contact email@example.com. When used correctly, Friend Mapper is AMAZING!
Please read FAQS on amigomapper.com or email firstname.lastname@example.org if you have any questions. We are not able to respond to individual questions posted in the reviews. Thanks!
Friend Mapper is currently only available for the iPhone / iPod Touch.
NOTE: 1-touch dialing and texting will not work on the iPod Touch.
Friend Mapper works best on 3G or wireless Internet Connection.
Keywords: locate, gps, navigation, friends, social networking, map, meet, directions, find, caravan, coordinate, follow, car, seek, watch, view, web, movement, move, commute, drive