ShowUI is a PowerShell module to help build WPF user interfaces in script. ShowUI makes the complicated world of WPF easy to use in PowerShell. You can use ShowUI to write simple WPF gadgets, quick front ends for your scripts, components, and full applications.
My MSDN article: Secrets to Building a WPF Application in Windows PowerShell
Post: PowerShell, ShowUI and the Twitter API and video tutorial
- More videos on the ShowUI CodePlex page