Back when we first upgraded to EP6 SP2, I remember reading something about a portal broadcasting tool (name may not be exact). Essentially, what it allows you to do is message everyone currently logged onto a portal instance. It was not something we actively pursued at the time, but now such a feature has been asked for.
Does anyone know what the name of this tool is? I can't seem to find it anywhere via search.
If the tool doesn't do what I want, any suggestions as to a custom app? I was thinking of an iview that would subscribe to an EPCM event and would pop up when the event was raised. It doesn't have to be fancy, just a way for us to say, alert all the current users of a dev environment that it will be going down in 10 minutes.