The Ultimate and Premium versions of Visual Studio 2010 include a new set of tools for creating automated tests that interact with application UI known as Coded UI Tests. One of the tools is a recorder that will generate the appropriate code for you as it monitors your interactions with your application.
Although it is based on older mechanisms for examining the UI (it makes me yearn for the clarity of Snoop), it is still effective at identifying most WPF interactive controls in simple applications. Problems start to arise when working with the more complex data-driven type of applications where WPF excels.