Via Robert Ingebretsen,

«Sorry that I've been pretty silent for the last couple of weeks. I was at PDC for a week and then took a week and a half off to visit my wife's family in Ithaca. Well, as you can imagine, this meant a lot of flying and I used my time on the plane to build some control styles. The two I've made so far turned out pretty nicely, so I've posted them for your styling pleasure. So far, I've only created two styles: one for Button and one for TabControl, but more should be coming. These work with the September CTP bits (which are the same bits handed out at the PDC).

You can download the styles here.»

Here's a nice minesweeper project done using XAML

Weekend @ Porto
A little train, a little boat, and a little work/geek dinner at friends' house.

Windows Pesentation Foundation
If you're curious about the WPF (former Avalon) a good start would be reading this whitepaper from the North Face proof-of-concept shown at PDC05.
You can also check out the video from the presentation of this proof-of-concept here.

Microsoft MAX (codename)
Also from PDC05, another nice proof-of-concept, from the site:
Microsoft® Codename Max is not like any other product. That's because it's not a product—it's your opportunity to try an exciting new user experience from Microsoft. Max is built on built on the next-generation WinFX technology that will drive the development of Windows Vista® applications. Today Max lets you make lists of your photos and turn them into beautiful slide shows to share with your family and friends. Tomorrow...who knows?