This sounds like a task aligned with my skills. Parsing the icecast connection logs, one can formulate a connection/dropoff timeline for the day/hour/broadcast, etc. Parsing could be done periodically using a cron task, and sent by e-mail or posted directly to the [login to view URL] site
I would require either direct access to the system, or could possibly work with just the a sample of a day's log files to generate the script.