Free Google Navigation App in The Works?

According to Forbes, various navigation service companies suspect [and fear] that a free voice-guided, real-time, turn-by-turn navigation app by Google is in the works. These companies believe ad-support would make it possible for the application to be free. Google has a lot of experience in that department, since it already put ads on the iPhone map application, which it helped build.
?Of course, this kind of rumor is nothing new, as people have been speculating that Google would create a free navigator ever since Google Maps was introduced on mobile phones. However, Google has all the pieces needed now, it just has to put them together. The rise in popularity of Android and Google Maps are fueling this story even more. And that?s why all the navigation service companies are worried.