I have a Netduino.

It is nice to be able to program .NET into one of these devices. However, it is non-deterministic, of course, which is a shame. I'd like to piggyback a high-speed data acquisition board onto it width buffered storage, and use .NET in the Netduino to perform analysis and summary to transmit of TCP/IP or UDP.

It's a project that keeps being pushed down the list, though.