RELEASE: Family.Show - a free Family Geneology application based on Windows Presentation Foundation
Description 
taken from the web site:
"For a hobby that revolves around dead people, genealogy is remarkably popular: it's the fastest growing scene in North America. And a perfect study for Vertigo's next Windows Presentation Foundation (WPF) reference application for Microsoft.
Our designers employed every trick in the WPF book– styles, resources, templates, data binding, animation, transforms– to present an innovative visualization of the classic family tree, freeing our developers to concentrate on behind-the-scenes features like XPS, P/Invoke wrapper for Windows Vista common dialogs, and ClickOnce for WPF."
A couple comments:
1) 1.63MB! This is once again, a tiny WPF-based application at only 1.63MB in download size for Windows Vista, demonstrating once again, how application libraries are built directly into the operating system making WPF applications slim and optimal by taking advantage of the native services and functions within the OS.
2) DRAG & DROP PHOTOS: I was pleasantly surprised to discover that the developers designed drag & drop correctly: All you have to do to bring in a photo into the program is drag and drop it onto the "blank" photo frame for an individual and you're finished.
3) XML & GEDCOM EXPORT: Geek moment here, but all data is saved in XML making it very easy to read into other applications. And what's more, it will also export into GEDCOM format so that it can be read & displayed in basically any other geneology software.
4) SAVE TO XPS: Want to send your family tree to someone else to see? Create a read-only XPS document out of it and have them view the content the way itwas meant to be viewed.
5) BEAUTIFUL!: This is just a gorgeous program. The graphics are extremely scalable, the visuals and animations are smooth an appealing, and the overall program design is just so well done. Good job, Vertigo. Folks, if this doesn't demonstrate to you how Windows Vista is simply an awesome platform for next generation applications, I don't know what will.
--------------------
FREE DOWNLOAD: http://www.vertigo.com/familyshow.aspx
(This isn't the only application by Vertigo that leverages .NET and the Windows Presentation Foundation. Check out there other creations at http://www.vertigo.com/lab.aspx)
Tools 
