Hey there everyone, I'm one of the Cocoapods core team, and I think it's a shame that we don't have that many Cocos2D related podspecs in our library. We have cocos2D versioned so you can set a dependancy on that and then you're good to go with including your own cocoapod. For example czgarret has a bunch of libraries that work using cocoapods that don't take much time to make but mean anyone can quickly include and version his libraries with ease. So please don't think that we don't want you guys on because it (understandably) is mostly UIKit related code.
If you have any thoughts on ways that I can help you guys get some of your work into cocoapods please reply here, or grab my email from my github profile.