Using an XMPP server with Orbited

[Mark]

Hi,

If we want to use an XMPP server with Orbited, is there any one that
is recommended? I primarily want an XMPP server so I can track
presence - I'll also need to be able to have the ability to modify the
XMPP server instance to handle private messages (not sure if this is
possible yet) from clients.

I'm trying to make a simple game, was hoping an XMPP server would let
me know which users are in which "game room", then by pressing some
game action button in their GUI, it would just post a new message
silently from their browser to my XMPP server where I could interpret
it as a game move ("player3:jump_forward") - any recommendations? I
see ejabberd looks pretty robust but I don't know anything about
erlang - anything else out there that's good?

Thanks