Patent ID: 7925437

Claim:
A navigation device, comprising: a map database and software programmed in the navigation device, the software being configured to enable a route to be planned to a user input destination using map data stored in the navigation device, wherein the device is further programmed to display on a touch sensitive display a main navigation mode screen that shows, when in use, a map and a current location of the navigation device: change the display to show a plurality of icons, belonging to a core set of functions including a function of selecting a virtual keyboard, with a respective non-overlapping touch input zone that is large enough to be reliably activated using a finger of a user; and to allow a user to input destination address information using a reconfigurable virtual keyboard whose key layout is reconfigurable to a plurality of different keyboard formats by selecting an icon representing a desired keyboard format, wherein the navigation device is a portable navigation device and the touch sensitive display is approximately the same size as a 3.5″ display in a Pocket PC computer.