1. A method of managing a local cache and point of interest information that is accessed by and that is stored on and selectively removed from the local cache of a mobile device, the mobile device including a processor and a local cache, comprising: the mobile device determining direction information based on an orientation for the mobile device; the mobile device determining position information as a function of a position for the mobile device; the mobile device storing, in a local cache of the mobile device, point of interest information for one or more points of interest, the point of interest information having been previously received at the mobile device; the mobile device identifying a region of real space that the mobile device is unlikely to encounter in the future based at least in part on the direction information or the position information; and the mobile device selectively and automatically removing from the local cache of the mobile device, point of interest information for at least one of the points of interest in the identified region that the mobile device is unlikely to encounter based at least in part on the direction or position information, freeing up space in the local cache.