How about joining forces and merging your work into ETNA ?

(From Alex: That thought has been foremost on my mind. I haven't been able to contemplate it seriously, as I haven't yet seen what he's cooking, and he hasn't seen what I'm cooking.

I'm not sure I care for the name, though... ;-) )

When ? As soon as possible :)

I had written a prototype WYSIWYG XML editor in Java some years ago (it's still on SF somewhere), but had to stop for lack of time and because debugging Swing was giving me headaches ;-)

I am now part of Apache Forrest http://forrest.apache.org/ and am very interested in an XML editor for editing documents to feed to Forrest.

All this said, I would warmly suggest you to make testable builds available ASAP, using the "release early, release often" mantra, with a big disclaimer on top saying that it's unusable, only for developers, "use at your own risk", etc.

This would make it possible for people like me to test it and give feedback. IMHO it's important to have it early, especially with XML editing which can become difficult from a usability standpoint, as you have correctly pointed out on your blog.

Come on, show it! :-)