The library allows to control Lego power functions (motors, servos, led, etc.) from Netduino using infrared remote control protocol.
Using this library is as simple as building using LEGO bricks.
Samples and pictures here: https://github.com/gmamaladze/LegoRC.net/wiki
NuGet here: https://www.nuget.org/packages/LegoRC.net
Enjoy!