Microsoft Robotics Studio 1.0 was just released. This letter describes what it's all about, as does this video.
It's pretty exciting to have a standard development environment for robotics applications. If it's robust enough, I might end up using it for research. In the past I have used OPAL/ODE for physics and OGRE for visualization, which is great because I have full control over the entire simulation, but it requires a lot of overhead to setup each new control task. Using Microsoft Robotics Studio would save me tons of time and give me lots of new features (e.g., debugging sensors via a web browser).