[jdev] Enumerating all users' presence?

[Talley, Brooks]

I'm working on a community application that will span xmpp, a web app,
sms, and couple of other mediums.
 
I'm desperately trying to find a way to query a jabber server to get a
list of all users currently connected, as well as their presence status.
I realize that this is going to have to be done with raw XMPP (if it's
even possible), and that's fine.   But I'm reading the RFC's and just
not coming up with the kind of admin interfaces I was hoping for.
 
Am I missing something?  Can someone point me in the right direction?
 
Thanks
-Brooks