Elena Dykhno launched a few days ago this great resource with forthcoming code samples (including .NET code) and a scratch pad (that currently documents the XML interface but not yet SOAP calls), both dedicated to version 4.0 (currently in beta) of the Amazon Web Services. The code samples are not there yet, but I know Elena is for real because she already posted C# and VB.NET code in the discussion board (create a cart, SOAP request). Way to go!
