As I say, I am not a unity dev, but just guessing from what little I know about it, I would say that mono is merely a language runtime that still depends on the

As I say, I am not a unity dev, but just guessing from what little I know about it, I would say that mono is merely a language runtime that still depends on the underlying platform for things such as networking. Unity, which allows C# and Javascript, needs to have the same API for both languages, which is ultimately implemented via npapi, activeX or pnaci, or you know, the other platforms it runs on. So far as I know, mono doesn't have networking libraries for all those different apis.