This is a video demonstrating the offline usage of the Tech Head Brothers authoring tool.
The tool is using now WCF in place of WSE3 and works great with ASP.NET membership and role.
As stated in the blog of Frank Arrigo (responsible for all Technical Communities in Australia),
One of the things we will be showing at ReMIX is a preview of Discovery Channel Asia's "Never Miss TV" developed by local digital agency @www. It's one of the first commercial applications developed in Australia using Silverlight.
If you place on a web page a ModalPopup and a Silverlight control, you might end up with the ModalPopup hided by the Silverlight control.
To avoid this at the time you call Sys.Silverlight.createObjectEx you need to give the following property to true: