Thanks to everyone who attended! I've received a number of emails regarding the demos from my User Experience session at the DC Launch yesterday. There are a ton of code samples / demos available with the Windows SDK. The "healthcare prototype" and "Woodgrove Finance Explorer" apps (along with others) are available at http://wpf.netfx3.com/files/folders/applications/default.aspx. Make sure you check out www.netfx3.com for all sorts of info on .NET Framework 3.0 development. I did not get a chance to show the New York Times Reader. If you haven't seen it before, you should try it out. It's hard to explain, but you won't want to read the news in HTML after using it. Finally, the free WPF grid control I spoke of is at http://xceed.com/Grid_WPF_Intro.html. There's a live .xbap demo of it at http://download3.xceedsoft.com/demo/gridwpf/Xceed.Wpf.DataGrid.Samples.LiveExplorer.xbap.
You can also get the Expression Blend beta at www.microsoft.com/expression.
UPDATE: I forgot to mention the upcoming Yahoo Messenger for Windows Vista which is a WPF app!