http://www.kickstarter.com/projects/539087245/spriter/posts
It will support cocos2d. (I guess they meant cocos2d-iphone)
It looks really great.
Iam looking forward to Cocos2dx support.
Wow, it’s a good news. Hope it will support cocos2d-x too. 
Today Spriter preview is released for all platforms and is supporting texture packer, which is great news. This tool is going the right way and there is chance a cocos2d-x port will be a must. They won’t support cocos2d-x natively, they let the communities develop their own plugins.
I think the best approach will be to port what the kind folks on cocos2d-iphone will make.