Xamarin Studio thinks I'm trying to use something which requires the 'Business License'. This only happens for Android builds, not iOS. I've not added anything which should be referencing the WCF assemblies.
I'm using pre-built binaries from https://github.com/slodge/MvvmCross-Binaries/tree/master/VS2012. I've used these in the past with no problems.
/Users/jokeane/Projects/kiio/Kiio.Android/Kiio.Android.csproj (SignAndroidPackage) ->
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.targets (_ScanAssemblies target) ->
: mandroiderror XA9003: Assembly `System.ServiceModel, Version=126.96.36.199, Culture=neutral, PublicKeyToken=31bf3856ad364e35` requires Business (or higher) License.