I’ve already blog’d about the WPF Toolkit & the WPF Ribbon Preview.  One of the things that may not be obvious, is how to get started with the new controls.  Buried inside the October 2008 Release page is a set of links for control walkthroughs, a nice Hands-in-Lab, and a helpful blog post explaining how to turn on Visual State Manager support for WPF in Expression Blend.  They are real easy to overlook.  I didn’t notice them the first time.  They are below the download links, after the release notes.  Yes, I am one of those guys that usually skips over the release notes and documentation and just starts tinkering.  I’ll never learn my lesson:).  I’ve provide direct links to those resources in case you missed them too! 

DataGrid Feature Walkthrough

DatePicker & Calendar Feature Walkthrough

Visual State Manager Overview.

Ribbon Feature Walkthrough

Hands-on-Lab: "What's coming in WPF: DataGrid, Ribbon, & VSM"

Visual State Manager in Expression Blend

-Marc