Christian Weyer has released version 0.5 of WSCF, details here. WSCF is a plugin to vs.net that allows developers to create web services from xsd contracts, instead of letting vs.net make your angle brackets for you. Contract first is a great way to ensure interoperability in your web services since you're focusing on the angle brackets first. Developing the contracts first also allows all the invovled parties to have something tangible to discuss long before any real code has been written. Since vs.net doesn't really support the contract first model out of the box, wscf fits the bill nicely, letting you create wsdl from a message schema, and then the asmx from that wsdl. Highly recommended if you're interested in contract first web services.