Electronic installation and update method and system with dynamic picture mosaic interface. Method and system for viewing a contact network feed in a business directory environment. In this embodiment, the visible region of the map , shown in the map- display application , may transition along a straight geographic path. Method and apparatus for pre-fetching remote resources for subsequent display on a mobile computing device. In one preferred embodiment of this invention, OVIs , and may be displayed by the map- display application , referencing MOs which are outside the area of the map visible to the user through the map- display application
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