I'd be willing to peek and poke around likely, no guarantee that I would have time, or the skill to actually complete anything.

I like the way Altova created their xml-editor. A simple plain-text editor with syntax highlighting and a "Grid"-like view of the xml.

I still find the plain text with SH more readable than the yellow tag-stuff in NVU.

As for language support, I just use Xml Spy or Visual studio and attach another XSD, depending on what I am writing ... I have some custom Xml-languages at work for which I wrote Xsd's to be able to edit them easily with intellisense support ...

Maybe I am missing the goal of this ... tell me, I am intrested ...

(From Alex: The goal of my post is to find out who would contribute actual code to implement their own editing capabilities for specific XML languages. Feel free to e-mail me if you still don't understand, at ajvincent on GMail.)

I would be willing to make the files for at least css and xhtml if it was well documented and had a good template to follow...