I didn't make my point particularly well there to be honest. Writing an NT driver is incredibly more complicated than an equivalent Linux one, because your device needs to be able to handle different types of memory buffers, support all the Irp layering quirks, etc.

I just meant that writing an NT kernel driver will really give you an appreciation of what's going on behind the scenes in order to facilitate awesome userspace things like overlapped I/O, threadpool completion routines, etc.