This samples makes use of dynamic types in DLR. This sample imports System.Json from ASP.NET MVC sources which includes JsonValue.AsDynamic() which allows users to directly specify object keys as field names.
This sample retrieves Twitter public timeline JSON and parses it into the ListAdapter. Hence it requires internet access (and working twitter).
Bonus: You can also add reference to mono-reactive for Android from https://github.com/atsushieno/mono-reactive , add REACTIVE symbol to compiler options and get things done asynchronously.