A friend of mine spotted some new additions on his dmoz editors controls, namely the introductions of expired domains information that almost certainly has been given to them by Google. The implications are numerous, the quote below says it all.
THIS DOMAIN HAS EXPIRED
This domain will become AVAILABLE by 5 Jun 2005 and may then be hijacked. Be very careful before accepting it back into the directory. For more information, see the expired domains page
I don't believe Dmoz have the resources to mine that kind of data themselves, though it may well be possible. If Google is giving them tools to better qualify their data, it may suggest they're leaning more heavily on ODP...