Does official OData client ODataLib work in mono ?

I have read this article about how ODataLib works on Xamarin:

http://blogs.msdn.com/b/dotnet/archive/2013/11/13/pcl-and-net-nuget-libraries-are-now-enabled-for-xamarin.aspx

There is a screen capture in this article which describes how to use official ODataLib in a pcl and the pcl is referenced from Xamarin.Andoid project. But if I try that (generate proxy class via add service reference and call example Northwind Odata service) I get this error

http://stackoverflow.com/questions/21081316/mvvmcross-xamarin-wcf-data-services-5-6-not-implemented-exception

Answer says that some WebResponse methods are not implemented, so ODataLib would never work. Do I something wrong, or there is a problem with that article (OData part of article)/screen and presented exampl would never work?