It would be very fun if there was an IRC channel in which all new questions on SO were listed (title, tags, and (clickable) URL) automatically upon their creation.
This would be a possibility with the new StackOverflow API. Currently it is in Semi-Private Beta, so look for it to be released in the upcoming months.
I'm sure someone will do something like this by checking the new questions feed as often as the API allows (or once every 10-30 seconds).
This would probably be a fairly easy thing to implement.