awesome video! Can you shed some light on when WinPRT will have ServiceModel and associated namespaces so we can *really* start porting. All these samples are great from a UI perspective but don't include the tremendous amount of backend redesigning that needs to happen for a port to happen (becuase of lack of WCF stack).
Most of us built our WP Silverlight apps using WCF web services. For some bizarre reason everyone keeps giving "LongListSelector" and "namespace change" examples; these are just about the least of anyone's concerns given the huge backend effort needed to commit to WinPRT.
For my part I spent a week converting one of my apps without even suspecting that such a thing would be ommitted and not clearly stated. Then i right-clicked on my project searching for the "Add Service Reference" menu item and cried myself to sleep...
Please give us some good news, every release of your UI SDKs lately seem to be missing some obscure critical piece that just delays innovation and development.