In general this is of more use to actual people building IoT devices. Currently they support Wiring but promised NETMF will get there.
I tested mono on different Linux boards and it works great with very good performance (comparable to native code). So you donât need .NET Core at the moment.
In the future I think Mono and .NET Core will be mergingâŚ
I read on the Mono website, that now that MS is making more and more parts OpenSource, they will adopt code from MS into Mono.