Hi, The Jackrabbit project (among others) is organizing a JCR meetup event during the Hackathon in ApacheCon EU. See http://wiki.apache.org/jackrabbit/JcrMeetupApril2008 for more details.
One of the proposed program items for the meetup is a JCR content modeling workshop where we'd take existing (or planned) content models and discuss how that model would best fit a hierarchical JCR content repository. Abdera already has JCR support but I'd be interested in reviewing it and perhaps discussing extensions that would make it possible to use Abdera on top of generic JCR content (i.e. not created or primarily managed by Abdera). If you're interested (and around in Amsterdam), you're welcome to participate! I'll try to keep notes and send a summary of the discussion to this list. BR, Jukka Zitting