Async Await Sample

I'm playing around with the async sample found here... http://docs.xamarin.com/guides/cross-platform/advanced/async_support_overview

Even in the image on the page, it shows that the iOS version displays "DownloadHomepage method continues after async call. . . . .", but the Android version doesn't.

When I run the project (on my Android), I don't get the line either. Looking at the code, I would expect to see it.

Why doesn't it show up on Android? Is there some nuance with async I'm missing?

Thanks.