iPhone UI With Silverlight
Pretty cool... Faisal Khan recreated the iPhone UI with Silverlight and shows how you can do it, too.
https://dotnetslackers.com/articles/silverlight/IPhone-UI-with-Silverlight-2-beta-2.aspx
This will be really cool once Silverlight for mobile starts to become pervasive. I can picture someone creating a new shell UI with Silverlight that looks like this.