Several of the comments suggest a social leader board; I think that's a great idea. If you don't want to support Game Center on iOS, maybe a Facebook leader board. You could also set up your score board using Amazon's simpleDB. They support Facebook, Google, and Amazon logins. There's a basic article on that here: http://aws.amazon.com/articles/SDKs/iOS/8829919029640036 Amazon's dynamoDB does more than that, but I ca…
Here's the quick walk through for posting scores using dynamoDB:
http://docs.aws.amazon.com/amazondynamodb/latest/developergu...