As part of the alerting engine I think that it would be nice to have XMPP as an alerting option.
I moved to Orion from the OpenNMS monitoring system and it had XMPP alerting capabilities. When an alert would be triggered it would connect to our internal XMPP server and send an Instant Message to the appropriate people.
I am curious if anybody has been able to do something like this with Orion or if perhaps anybody else would be interested to see a feature such as this?