Andrew Stopford has published an article on using Flex with .Net called Flex, .NET and Flash Remoting pt1. Flex is cool, very cool. When I recently suggested it to a (.NET/CF) programmer friend of mine in San Diego I was reminded that unless it could interface with .NET it was of no use to him. My answer to him was that since Flex can consume WebServices/XML/SOAP, it will work with just about any current version of just about any Middleware out there. I'm glad to see non-CF communities embracing it!