Apple have been having issues with their Maps application ever since iOS 6 arrived, and they've been doing as much as they can to sort these issues out. Their latest step is acquiring online transit navigation service, HotStop.com.
According to people familiar with the matter, Apple want to "scale back their relationship with Google". This is of course known, as Apple dropped Google as their navigation source in iOS 6, one of their bigger mistakes of the last couple of years. A nice fact is that Google Maps is the most popular free app on Apple's App Store, so that's saying something.