Hello,
I'm currently developing a PCL application for iOS, Android and WP using Xamarin.Forms.
The thing is that I can't find a nice multiplatform way to do authentication. I'm currently using the Azure Mobile Service, which supposedly supports Windows Phone for authentication, but every example that I find only shows how to do that with Android or iOS (for example https://github.com/conceptdev/xamarin-forms-samples/tree/master/TodoAzure), and most of them is very old. I would like to keep away from renderers also, but that does not seem to be an option.
Also, Xamarin.Auth does not "officialy" supports WinPhone, and its experimental branch had its last update on 2013.
What is currently the best way to achieve this?