I would like to suggest a few tools to be added to the page [[Editors_for_cocos2d-x_TextureTilemapParticleActionLevel_etc]].
I found these when searching for tools for cocos2d.
* Hiero (cross-platform): http://slick.cokeandcode.com/demos/hiero.jnlp (free)
Texture atlas editor:
* TexturePacker (Windows, MacOSX): http://www.texturepacker.com/ (basic version is free, full version is $19.95)
Physics object editor:
* PhysicsEditor (Windows, MacOSX): http://www.physicseditor.de/ (basic version is free, full version is $19.95)
Can you please add these to the wiki?
I would encourage others as well so that if you find any nice tool to use with cocos2d-x, please share it with the rest of the community!