A number of people have had trouble sourcing the Netduino boards and asked me for help. I have now added support for the GHI FEZ Lemur board which is a perfect replacement for the Netduino devices. They seem to be in stock from places like Mouser which is also handy.
In theory, we should be able to get this working on any pin similar board such as the GHI Panda III or Cobra III etc. If you have a board you need support for, let me know and I’ll roll out a new project. I have simplified the projects to use shared files and ifdefs so it is quite quick.
See: https://github.com/m1dst/Trimble-Thunderbolt-Monitor
For the PCB see https://m1dst-co-uk.stacktemp.com/shop/