Over on the Claims-Based Identity Blog they have a post linking to a step by step guide for creating a federated solution with PingFederate and ADFS 2.
Here is the abstract of the guide:
Building on existing documentation, this step-by-step guide walks you through the setup of a basic lab deployment of AD FS 2.0 and PingFederate that performs cross-product, browser-based identity federation. Both products perform both identity federation roles: claims provider/identity provider and relying party/service provider. This document is intended for developers and system architects who are interested in understanding the basic modes of interoperability between AD FS 2.0 and PingFederate.
You can find the related documents on TechNet at http://technet.microsoft.com/en-us/library/dd727938(WS.10).aspx.
ADFS / WIF / Whitepapers