From the link above...
What is GPS and is my phone capable?
The global positioning system (GPS) is a satellite navigation system. More than two dozen GPS satellites orbit the Earth transmitting radio signals, which allow GPS enabled devices such as phones to determine their location. The location may be expressed in longitude and latitude or it may be shown on a map. Location services can help you get directions or locate someone else who has a GPS enabled phone. For more information on the location services, go to
Real-time tracking.
The following Sprint Nextel devices use GPS:
o HTC: Mogulâ„¢
(list shortened for the purposes of this topic)