We may now have a better idea of why Apple objects to Google Latitude.

It appears that Apple has purchased PlaceBase, a company that produced a maps API called Pushpin and offered a mapping service much like Google Maps. The evidence, dug up by ComputerWorld's Seth Weintraub, first appeared in the form of a tweet in July by Fred Lalonde, the founder of Openspaces.org, a company that used PlaceBase's software, stating that Apple had purchased PlaceBase.

The next clue apparently came from Jaron Waldman, PlaceBase's founder and CEO. His LinkedIn page now lists PlaceBase under his "past" experience and now lists his current occupation as a member of Apple's "GEO Team." In addition, Placebase.com and Pushpin.com have been taken down.

All this leads one to believe that Apple has snapped up PlaceBase. However, Apple representatives did not immediately respond to requests for comment.

More: http://news.cnet.com/8301-13579_3-10364988-37.html