I haven't spent a lot of time on working with WPF, and I wanted to take this opportunity to get a better feel for what was coming.  The presentation focused on using the WPF API's and Object Model to help you focus on three main areas:

1. Managing your application
• State management
• Configuration management
• Deployment
2. Navigating your application
• SDI
• Structured Navigation
3. Hosting your application
• Windows
• Web

The demonstration was really well done, the presenter took an existing web application http://www.kayak.com/ and used its exposed services to build a better presentation.  No fancy animations, or weird 3D user interfaces... just a better UI focusing on user experience and the capabilities of WPF.

The most interesting parts were understanding the navigation model, and getting a better look at the interoperability between the windows and web (XBAP) WPF applications.

If this is something you're interested in I would highly suggest taking a look at the presentation or slide deck.