As an aviator I thought it was cute and quite funny. I love when unusual things happen on the radio, and while witty controllers are often the best, this would have made my day. What do the masses think?
Here's the full story and the audio clip, from Avweb:
In a statement to Fox 25 in Boston, the FAA said "pending the outcome of our investigation, the employees involved in this incident are not controlling air traffic. This behavior is not acceptable and does not demonstrate the kind of professionalism expected from all FAA employees." NATCA released a statement saying "we do not condone this type of behavior in any way and it is not indicative of the highest professional standards that controllers set for themselves."
Also here is the Fox article, where they interview a random retired pilot, and tie the event to an irrelevant story: http://www.foxnews.com/story/0,2933,587801,00.html
Finally I would like to take this time to point to a recent Ars Technica article that describes the ATC system quite nicely: http://arstechnica.com/science/news/2010/03/the-science-and-technology-of-air-traffic-control.ars