Apple has quietly purchased mapping service Placebase and its accompanying Pushpin API, hinting that the company may be planning to use the assets should it need to replace Google Maps in several of its applications, such as the Maps application on the iPhone and iPod touch. Citing a Twitter update from the founder of openplaces.org, which used the Pushpin API in its software, along with an updated LinkedIn profile for Placebase CEO Jaron Waldman,…
