Windows Communication Foundation (previously codenamed "Indigo") is Microsoft's unified framework for building distributed applications.
With WCF, you can build secure, reliable, transacted Web services applications that interoperate with apps built on other platforms and integrate with the applications you're building on today's .NET technologies. And WCF is designed to be the next logical version of today's .NET distributed technologies, so if you’re using ASMX, COM+, MSMQ, .NET Remoting, or WSE, you'll love WCF.
WCF is part of WinFX, Microsoft's next-generation Windows framework. WinFX is an extension of the .NET Framework 2.0, and will be available as part of the Windows Vista operating system, as well as for Windows Server 2003 and Windows XP.
Eyal Vardi is a Microsoft Most Valuable Professional – MVP. Eyal lectures in the Interdisciplinary Center in Herzelia, and participated in many Microsoft technical conferances and discussion groups. Eyal has been part of cutting-edge software industry projects: he co-founded R-U-Sure (managed by Yossi Vardi of ICQ), TreeWay and VCI, where he has several different senior responsibilities managing development, product and business development.