Systems, devices and methods are provided for integrating GPS receiver technology into a PDA. The systems, devices and methods of the present invention integrate GPS capabilities with PDA functions, and in particular integrate a PDA address book function with an electronic map and GPS capabilities. One aspect provided herein is a method. In one embodiment, a location or feature is identified, and a Personal Digital Assistant (PDA) address book entry is associated with the location or feature. In one embodiment, a Personal Digital Assistant (PDA) address book entry is selected, and a location or feature is associated with the PDA address book entry. Other aspects are provided herein.