Currently I'm generating my WCF service reference using slsvcutil from silverlight 5. I'd like to use the async await pattern and I don't believe you can generate task based contracts using silverlight 5 as I believe it's .NET 4.0? Not sure. Or I don't know the proper command line switch required to make this happen. So instead what I'd like to use is a WPF 4.5 application, add a service reference, then copy those files over to Xam Studio.
Any problems with this solution to using async await for WCF?
P.S. If this is a good solution Xamarin may want to note this in the docs