As far as I can see there is no support currently in the Smack library itself for PubSub (JEP-0060).
Seems like the best library to use is su-smack (http://freshmeat.net/projects/su-smack/)
Is my assumptions above correct?
Is the idea to merge su-smack into the Smack extensions itself (smackx.jar)?
If #2 above is true, will it be a straight-forward port into org.jivesoftware.smackx packages, or are you considering a re-implementation of PubSub. I don’t find any reference to PubSub support on the Issue Navigator for Smack (http://www.igniterealtime.org/issues/browse/SMACK)