i'd love to see a simple small shout box built into the edit/tool bar, it doesn't have to be big, just enough so that when im online i can send a quick message to all the other editors just 3 lines tall would be enough. so that i could have something like

fang | john will you be long on this page?
John | not sure
fang | ok, i'll skype you

would this be hard to do? and which files do i need to be looking at? because the dashboard shows up in a lot of folders so im not sure where to begin.