The main issue with xeditor so far was that it didn't do any sanity checking on the input it received. This now got solved by the integration of SafeHTML from http://pixel-apes.com/safehtml/ (up for you to decide if that's good enough for your needs).

Further, Xavier is working on a way to use this on sites that already have some content using original ezxml and convert it on the fly. That could be a while off, still.

We've also added some rough docs about the architecture of this beast.

Being very much alpha stage software, it currently only lives in pubsvn, get it from there and try it on a development site, not a live one!