They could have done integration without changing or runining the maps. But that was not decision (either because Google cut them off or because Apple did not want to continue negotiating with Google). And you know why the integration makes matters even worse? Because as there is no similar features to intents on Android, when you click on a direction on iOS it will always open it on Apple Maps, even if it doesn't find anything or show you London in Oklahoma when you are in the UK.<p>Secondly, AFAIK, the old Maps app was also done by Apple themselves, using Google's technology. The lack of features is not Google's fault, but Apple's. The same happened with the YouTube app, that was really behind Android, until Apple decided it was no longer developing it and Google took over. Seeing how Google behaves, I'm pretty sure that if they had the chance to add turn-by-turn navigation to the iPhone they would have done so.
Same experience for me with the new Maps app. It worked great for me. Very impressed by the integration of the turn by turn navigation. There is a lot of work to be done to catch up to Google maps, but this is a decent start.