According to the Sun, Apple has purchased Quebec-based Poly9, a mapping API provider for Apple, Microsoft, Yahoo!, MSNBC, and NORAD.
Poly9's website has been shuttered, their employees moved to Cupertino.
Last year, Apple bought PlaceBase, a company that specialized in API for layering data sets over maps.
Since there's only a few companies that actually own the maps themselves, Apple still isn't going into the map business -- but they certainly look to be doing a lot to make their implementation of maps better and more powerful.
iOS 5 anyone?