TomTom, the Dutch mapping data company that has been one of the key partners in Apple Maps since day one, will continue to supply the iPhone maker with geographic and street-level data, despite rumors of a wholly revamped Maps service in the works. TomTom is one of several partners Apple uses to collect location data for Maps, but has been one of the most important, even as Apple has spent much of the last three years acquiring other GPS-related companies.