Adding a Silverlight (3) gui to an existing Azure webrole
This is extremely easy. Steve Marx points out in a comment on this blog post:
To add a Silverlight project to a Web Role project, simply right-click your project file in the solution explorer and select "Properties". In the Project properties view, the bottom-most tab on the left is "Silverlight Applications" - select this, and there is an "Add..." button that allows you to add (and configure) a new or existing Silverlight app to your web role.
And that is really all there is to it. I've tried this with a Silverlight 3 project but since the comment is from december 2008 I have every reason to believe this works for Silverlight 2.0 projects as well. Not that I can think of any reason to stick with 2.0... but that's another story ;-)