вот кстати наподобии платка в таком же ценовом диапазоне
http://www.ghielectronics.com/catalog/product/256. зато камушек получше и перефирии поболее. на ultimate kit яб даже и не заглядывался, он чтот жутко неадекватно стоит.

дока кстати у них на сайте неплохая.
смотрим
http://www.ghielectronics.com/downloads/FEZ/Beginners%20guide%20to%20NETMF.pdfЦитата:
28.1 Serial (COM) Debugging
By default, all GHI's NETMF devices use USB for deploying and debugging. Optionally, a developer may want to use the USB client (not the host) for something other than debugging. This is actually supported by NETMF and GHI adds much functionality making it very easy to setup.
Important note: You can't use the USB client port for both debugging and something else. Once you decide you want to use the USB client port for your own use then you no longer can use the USB port for debugging. By the way, GHI did support debugging and customizing the USB interface simultaneously through using multiple interfaces on the same USB interface but this caused a huge load of support due to improper use and so
simultaneous use support was dropped.
т.е. в принципе можно. может быть в netduino уже и реализовано совмещение дебагинга и виртуального кома, но как и предпологалось это изврат, имхо дануна.