Many Apple Maps users breathed a sigh of relief when Google finally launched their own stand-alone Google Maps app for iOS. The problem is that even with Google Maps installed, iOS 6 will always default to the stock maps application when a link is clicked or other navigational features are needed. It's no surprise that developer HASHBANG Productions has released a solution for jailbroken devices.
The Cydia tweak is called MapsOpener, and once installed the tweak will open all maps links accessed within a browser in Google Maps instead of the Apple version. iOS currently has no built-in settings that allow the user to choose which apps they prefer to use as a default. This leaves iPhone owners using stock apps for several functions where other alternatives are available.