The biggest issue is the name changes and trying to find the damn references they are located in. I’ve wasted loads of time loading and unloading to find the damn things.
Android is ace in this respect as it prompts you that an import is missing and if you would like to add it.
It would be great if Visual Studio had a similar kind of tool.
There is: it’s called ReSharper.
It’s worth every cent.
It adds using statements, and also references (at least for the full Windows .NET Framework (not sure for NETMF).
It also does a lot of other stuff and speeds up coding, warns about common coding mistakes, and offers to fix them with a single key press.