You won't be able to designate that as your "default" Maps app though, right? So if there's an address in another app, you can't just tap on it to go straight to the Google Maps app.
With Chrome on iOS, Google might have some wiggle room. For instance, in the G+ app, if you try to open a link in a browser, you get the option to open in either Safari or Chrome. Maybe they can do something similar for Maps?
I know that doesn't really solve the issue for other apps, but I bet a good amount of address-clicking comes from the browser.