In an effort to better understand its main source of competition, Microsoft has deployed Linux and other open-source software in a test center that's typically used by its business customers to experiment with Microsoft's own products.
Next, Microsoft plans to create a comparable system using Windows and its own server products to see how Windows and Linux match up side-by-side in a variety of workload scenarios.
Quoted From Here : http://www.informationweek.com/story...cleID=12803689