It would be really nice to ship with a built-in WYSIWYG editor. While we do have very nice FCK editor integration, unfortunately licensing reasons forbid us from distributing it with JSPWiki.
No target set, but a volunteer would be nice. One option would be to somehow ensure that FCK is only distributed in binary form (as a zip file which can be installed from JSPWiki?) or that the FCK authors can be talked into re-releasing it under Apache license...