A method for generating and communicating, from a transmitting wireless communication device to a receiving wireless communication device, a geographic route, the method comprising: performing communication between the transmission wireless communication device and the receiving wireless communication device to specify a reference coordinate system that is commonly used between the transmission wireless communication device and the receiving wireless communication device: presenting a reference map via an output user interface of the transmitting wireless communication device, wherein the reference map provides a reference for facilitating input of the geographic route; receiving, via an input user interface of the transmitting wireless communication device, route input indicative of the geographic route relative to the reference map; processing said route input to generate processed route information indicative of the geographic route with respect to the reference coordinate system, wherein processing said route input comprises a linear mapping from a first coordinate system to said reference coordinate system to convert data indicative of the geographic route with respect to the first coordinate system to data indicative of the geographic route with respect to said reference coordinate system, wherein the first coordinate system is associated with the reference map, and wherein the reference coordinate system is a latitude and longitude reference coordinate system based on a spheroidal model of the Earth and is substantially independent of a particular display map; and forming a message for delivery via a wireless communication network from the transmitting wireless communication device to the receiving wireless communication device, said message containing at least a portion of said processed route information. performing communication between the transmission wireless communication device and the receiving wireless communication device to specify a reference coordinate system that is commonly used between the transmission wireless communication device and the receiving wireless communication device: presenting a reference map via an output user interface of the transmitting wireless communication device, wherein the reference map provides a reference for facilitating input of the geographic route; receiving, via an input user interface of the transmitting wireless communication device, route input indicative of the geographic route relative to the reference map; processing said route input to generate processed route information indicative of the geographic route with respect to the reference coordinate system, wherein processing said route input comprises a linear mapping from a first coordinate system to said reference coordinate system to convert data indicative of the geographic route with respect to the first coordinate system to data indicative of the geographic route with respect to said reference coordinate system, wherein the first coordinate system is associated with the reference map, and wherein the reference coordinate system is a latitude and longitude reference coordinate system based on a spheroidal model of the Earth and is substantially independent of a particular display map; and forming a message for delivery via a wireless communication network from the transmitting wireless communication device to the receiving wireless communication device, said message containing at least a portion of said processed route information.