To XAML or C#

I used to build every MSFT interface application using XAML for everything. I learned everything can be done using XAML.

So, my question now is can everything be done in Xamarin.Forms using XAML? I find it a bit frustrating using the XAML approach but not having what makes it effective, since it is not MSFT XAML.

Should we use XAML or C# to be effective and have less bugs in Xamarin.Forms for now?

Do you plan to implement all the goodies from MSFT XAML later on that makes XAML so great?

And finally, what about Xamarin.Forms for Windows 8 and potentially Xbox?