This reminds me of a company I worked for that had a compulsory MSN Messenger log-in policy. Nobody was using it for messaging, but we were required to log in so that management could tell when we were idle/not idle. During my 2 week notice period, the head IT guy started chatting with me and mentioned that the only thing they weren't monitoring was in fact the chat messages sent via MSN Messenger. It was a beautiful two-edged sword and we had lots of fun conversations before I left.