Microsoft Robotics Group has released the October 2006 Community Technical Preview (CTP) of the Microsoft Robotics Studio. This release gets around the problem of Managed DirectX 2.0 expiring October 5 by moving to the new XNA framework. It also contains many improvements for interacting with LEGO NXT and iRobot Roomba as well as several other features. Here is how to get it:
  1. Detailed description of new features
  2. Download and try it out!

Enjoy!

Henrik