Update May 12: TomTom confirmed to Reuters today that “its global agreement with Apple covers maps and related information” but declined to comment further on the specifics of the deal.
Engadget just posted the screenshots above by an anonymous tipster who claimed to be running an iOS 6 developer beta on the iPhone 4S. It appears Apple is at least getting some data for its new Maps app through a partnership with TomTom. As noted in the report, the screenshots list “others” next to TomTom, but it does not list specific companies. It is unclear exactly what data or service of TomTom’s Apple is using. As pointed out by The Verge, Apple is crediting OpenStreetMap for data in the new app. The company also used OpenStreetMap in the past for iPhoto.