After many beta SDK versions and late nights I am proud to present the Prime31 GameCenter plugin just in time to make the launch next week! Online leaderboards and achievements are fully implemented. You can choose to use the Apple provided UI for the quickest possible integration or you can use the plugin to create your own fully customized UI. It will provide the raw score and achievement data and metadata for use in your game. Note: I decided to release this plugin before the multiplayer portion is ready so that everyone can get their leaderboards and achievements tested and released ASAP. Online multiplayer and all the associated functionality will be released as a free upgrade as soon as it is production ready. As always, you can find documentation here and the plugin page here. Enjoy!