So I downloaded and installed the iOS11 GM onto my iPhone 7 and find that Apple Maps is no longer working. When I tap on the Maps icon the screen goes white for something less than a second and then it reverts back to the screen where the Maps icon is located. I tried a hard reset but that didn't help. Just curious if anyone else has seen this problem. So far that is the only issue I've found with iOS11 and I did submit feedback about this to Apple.