That's not what I meant...  I mean, when a building is done being built, have a notice pop up like the spell research, like they do in Civ, where it says 'So & so city has finished building a barracks,' and you have the option to go to city prod screen or just close.  If you close, the city would idle until you go back in and add another job, it wouldn't pop up every turn.

I don't know about the rest of ya, but whenever I have a city finish building a project, I always go in right away to see what else is available to be built.  If nothing's available, then the city just idles...

I've played dozens of games in the beta and those indicators still don't catch my eye, my cities will go many turns idling because I forgot to check on them.  Perhaps if the icon report that appeared on the right flickered faintly when a city finished its build queue I would notice it.