I have a couple of custom-written apps that allow teams to track current progress on a projector using TFS.  I just found a community project on CodePlex that looks like a promising replacement, Scrum Sprint Monitor.

Scrum Sprint Monitor provides the Agile team with hands-off, always up-to-date status of the current Sprint, both at the individual and team level. It is designed to run either on a large LCD screen located in a public area, or as a desktop application.

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Looks like a great product!  If you try it, let me know what you think.