1. A system comprising: a wireless communication device, which is a handheld device operable to implement voice communication, comprising an input device, a microphone, a speaker, a video image generator, a display, and an antenna; wherein said wireless communication device is operable to implement said voice communication by utilizing said microphone and said speaker; wherein said wireless communication device is operable to implement a first function and a second function, when said first function is implemented, said video image generator generates a plurality of two-dimensional text images and said plurality of two-dimensional text images are displayed on said display, and when said second function is implemented, said video image generator generates a three-dimensional map and said three-dimensional map is displayed on said display; and wherein said three-dimensional map is displayed in accordance with the current geographic location of said wireless communication device.