For many, the release of Google Maps for iOS was like the Second Coming. However, since Google's maps are no longer integrated directly into iOS, using some features on the iPhone -- like asking Siri for directions -- still open Apple's Maps app.
Thankfully a few workarounds have emerged that don't require any jailbreaking or coding skills. The first, and by far the easiest is this simple tip from JailbreakNation (again, no jailbreaking required). Simply ask Siri for directions as you normally would, except add the phrase "in transit" to your query. This will open up Ap
