Hi there,
I just wanted to share my batched bitmap font class, because it took me quite a while to look for an existing solution. Since you can’t batch CCLabelBMFont’s, I quickly hacked together a solution to speed up font rendering in my game: http://www.nulldesign.de/2013/05/30/cocos2dx-faster-fonts/
This solution works quite well and maybe it could be extended and integrated back into the engine? Anyways, have fun using it.
Cheers,
Lars