An attempt to get NetMQ working under Unity3D's version of Mono. It is based on the .Net 3.5 port from https://github.com/PSG-Luna/netmq
Read more about NetMQ at https://github.com/zeromq/netmq
It's tested a bit and seems to work under Unity3D 4.5.3f3 on Win32, Android, OSX and iOS.
NetMQ is owned by all its authors and contributors. This is an open source project licensed under the LGPLv3.