Hey everyone,
I wanted to share my simple method for managing achievements in your Cocos2d game. I developed this for use with OpenFeint, but I'm sure it would work for Crystal SDK, Plus+, or your own custom achievement system :)
The full tutorial can be found here: Developing an Achievement System.
I hope this helps someone out. The Cocos2d community has given me so much support in getting my latest game to the App Store that I wanted to share this achievement system with everyone.
Thanks!