Valentin Iliescu's Portal UI XBAP
Valentin Iliescu has developed a XAML Browser Application with a portal interface [1] (similar to Windows Live Beta [2]). Try out moving the panels around or expanding/collapsing them. The application is compatible with the January CTP of the Windows Presentation Foundation [3].
[1] https://www.valil.com/portaluitest/portaluitest.xbap
[2] https://www.live.com/
[3] https://www.microsoft.com/downloads/details.aspx?familyid=61DD9CA7-1668-42E4-BD37-03716DD83E53&displaylang=en