MAKE: Blog: DIY GPS tracking
Mod a GPS enabled Nextel and fauxjack yourself…or your car, or your kid, or a big dog, or an elephant. We really, really want to track an elephant. Mologogo is a free service that will track a “friends” GPS enabled cell phone from another phone(gps not required) or on the web. It currently works on pretty much any Nextel phone with Java and GPS – even a $60 no-contract Boost Mobile phone.
The 6th incarnation of Elmer's blog