Despite the hiccups I've had with spine, this is one of the reasons I love it. You guys really thought the UI out so well. My artist and me are loving using it. I really hope the cocos2d api is going to have the full feature set of the other apis, like the blending, etc.. becuase then this will be a dream tool for me as well as my artist.
No more bitching at you guys.. bumps in the road are mostly out the way and your tool is awesome; I have faith in you to deliver a great cocos2d runtime.