Post your questions, suggestions and experiences regarding game design, integration of external libraries here. For irrEdit, irrXML and irrKlang, see the ambiera forums
As far as I can tell I don't think irrEdit source has been published, and I don't think there are other Irrlicht specific editors that are open source (don't quote me on that).
I run the Johnnyappleseed's editor, That could turn to a great program. I am waiting to see the released code. Do you know if this program will be updated or not? You know there were some bugs and a huge cpu usage.