I had the chance while I was at TechEd 2010 in Berlin, to pass by the Telerik stand and have a discussion with one of the developers on Weather Station, Silverlight application. I invite you to check this awesome application based on Telerik controls.
Here is the blog post explaining it in more details: Weather Station – An Awesome New Silverlight Demo by Telerik
You can also download the source code: Weather Station Source Code
And of course a live demo: Weather Station Demo