We have published a step-by-step guide on how to configure AD FS 2.0 and Ping Identity PingFederate to federate using the SAML 2.0 protocol.  You can view the guide in docx, doc, or PDF formats and also as a web page.  This is the fourth in a series of these guides; the guides are also available on the AD FS 2.0 Step-by-Step and How-To Guides page.  Special thanks to Ping Identity for sponsoring this guide.