Mobile phones can be programmed to display the location of any selected person on a map...so we just dial the number of another persons hand phone and their location will appear on a map on the phone screen-- ashreeta_p2, Jan 08 2004 Garmin Rino http://www.garmin.com/products/rino130/FRS/GMRS radio combined with GPS. When someone in your group keys up, their location shows up on the map display. [Baker^-1, Oct 04 2004] Simla http://www.halfbake...hone_20Buddy_20Listbut proximity alerts rather than a map. And I should also note prior by waugsqueke, since deleted. [DrCurry, Oct 04 2004] Same http://www.halfbake...l_20Phone_2fLocatorBut security added. [DrCurry, Oct 04 2004] Or you could ring them and ask.-- dobtabulous, Jan 08 2004 random, halfbakery