Cocosino have been released a brand new tool for creating games for android,ios ,browser using cocos2d-x technology.This includes IDE,emulator,debugger . The project is still in alpha.
Check http://cocosino.org/ for more details.
yes, we are working on easy to use IDE, integrating cocos2d-x and cocos2d-html. Also, we would like to “port” CocosBuilder to Windows and Linux. If you find this idea worthwhile, we will appreciate your contribution to Cocosino on KickStarter: http://www.kickstarter.com/projects/881121752/cocosino . Also any spread of word to community is welcome