Hi,
I have created an open source library which supports the communication from a Gadgeteer/NET MF Device with Azure Service Bus (Queues, Topics and Event Hubs).
Check it out on Github: GitHub - mobernberger/netmfazureservicebus: A .NET Micro Framework library for communicating with Azure Service (Queues, Topics and Event Hubs)
I will update the readme in the next days but there is also a Test application inside the project where you see how to work with it.
Michael