haystack + jena

Something we've been discussing for a while (and an important step for
simile) is to get haystack working as front end against a jena back
end.  I've identified a haystacker to work on this from our end.  Is
there an HPer who can similarly accept responsiblity for the jena side
of things?  I think this should be relatively straightforward once the
information starts to flow.

thanks
David