Is spamgourmet forwarding now (Mon Dec 9 13:03:50 JST 2013)?
Last message forwarded to my gmail from SG was from 8 December 2013 20:52 (UTC+2).
A test message I sent to myself directly to gmail got through, but am still waiting for the test message that was sent through SG (sent ~30 minutes ago).
Are you getting mails routed vis SG?