pg_listener in 9.0

The pg_listener table was removed in 9.0 in the revamp of
LISTEN/NOTIFY. In pgAdmin we used to perform a number of selects from
the table to get information about Slony clusters - for example, the
PID of the slon process or to check if a process is listening for a
specific notification. This allows the app to indicate to the user if
there is something wrong with their replication cluster.

I can't find any way to get that information now - any ideas?

-- 
Dave Page
Blog: http://pgsnake.blogspot.com
Twitter: @pgsnake

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