Patterns & Practices group is making Service Factory to ease Service-Oriented programming in Visual Studio. Don Smith had an excellent webcast to demonstrate how to use Service Factory Visual Studio extension to develop ASMX and WCF solutions.
The Service Factory allows developer to write contract-first services easier (instead of current implementation-first development). Don Smith showed how to use XSD file to generate data contract classes and how to define service contract to generate web service classes.
