The GooglePlayGames library conflicts with the GoogleCloudMessaging's dependency of GoogleIPhoneUtilities.
The developer notification certificate is always used.
This prevents registering both a developer and production APNS certificate with your game.
Swedish is not supported for the standard UIs
The standard UIs include leaderboards, achivements, and multiplayer inbox.
Public leaderboards are not populated correctly
Currently game activity on iOS is private, limiting what scores are visible.
Event counts are not sent to the server
The event counts are not sent to the server in most situations, affecting Quest completion and analytics.