La gente de Redmond tiene una implementación interna de Scrum. No confundir con la de Conchango.
Ahora está disponible al público, con un template para usar dentro del Team Foundation Server:
eScrum is a Web-based, end-to-end project management tool for Scrum built on the Microsoft Visual Studio Team Foundation Server platform. It provides multiple ways to interact with your Scrum project: eScrum Web-based UI, Team Explorer, and Excel or Project, via Team Foundation Office Integration. In addition, it provides a single place for all Scrum artifacts such as product backlog, sprint backlog, task management, retrospective, and reports with built-in context sensitive help
Fuente: http://blogs.msdn.com/adamga/archive/2007/06/13/microsoft-escrum-version-1-0.aspx
Download: http://www.microsoft.com/downloads/details.aspx?familyid=55a4bde6-10a7-4c41-9938-f388c1ed15e9&displaylang=en&tm
Gracias al bueno de Ezequiel Jadib por el dato.