Chris Santerre asked on the spamassassin-users list whether ds.surbl.org was being updated with the 6dos data. The answer is no, it's static now based on that snapshot Chris gave me a couple weeks ago. To be honest, the 6dos data seems too over-inclusive to me for production use, but perhaps Chris or Rich could help me figure out something closer to a live feed as we beta test it.
Jeff C.