TWIDisplay .net Micro Library
It comes in two files: TWIDisplay.cs, a class that implements all the functionality of the Arduino library in a C# class, as well as a test program that runs through all the modes of the display.
It has been tested with both Netduino and FEZ Panda v1.2 boards. It is confirmed working on both. On Netduino, pull-ups are required on SDA and SCL, whereas on FEZ Panda the internal pullups are sufficient (these are automatically enabled by the library).