Hello,
I've written a web console using gwt: http://lustyscripps.wordpress.com/2009/01/04/web-console-for-freeswitch
It has auto completion support and shows heartbeat event and logging messages (event_sink). I'll continue to work on it in my spare time, it's usable right now as it is. If anyone wants to provide artwork, I'll be glad to accept it.
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Arnaldo M Pereira