Abstract: A computer system is disclosed, including a processor unit, arranged to communicate with a memory and a positioning device, the memory including a map database and a task list, the task list including at least one task, where at least one of the at least one task has a location indicator associated therewith. The positioning device is arranged to provide information about a position. In at least one embodiment, the computer system is arranged to compute an estimated travel parameter from a current position to a location indicator associated with one of the at least one task using the map database, to compare the estimated travel parameter to a threshold value, and to generate a warning signal if the computed estimated travel parameter is smaller than the threshold value.

Abstract: Methods of providing customizable access to a navigation device, and a navigation device, are disclosed herein. For example, in at least one embodiment, the method may include providing a software development kit (SDK), including at least one application programming interface and at least one platform independent procedure call library; processing a navigation application on the navigation device, the navigation application maintaining a plurality of platform independent procedure calls based on the at least one platform independent procedure call library; and processing a customized application on the navigation device, the customized application using at least one of the plurality of platform independent procedure calls to access navigation specific information provided by the navigation application.