I've not yet updated to iOS 10, but I understand that Game Center is gone. What happens to your GC friends?
Is there an alternative way to see what games your GC friends are playing and their achievements? I know you can see this information in some games, but others do not provide this.
Is there a way to see if someone has played a game recently? I'll do this to see if they are actively playing a certain game before trying to setup a multi-player game.
Any other thoughts or comments about iOS 10 without Game Center?