There’s good guide on how to manage WP7’s Secondary tiles on MSDN.

So, how are you doing it with Caliburn.Micro? Take same way, it just works!

However, there’s a small touch of Caliburn.Micro goodness you can add to your code to make it more maintainable. When you’re setting the URI for your Tile, use the INavigationService.UriFor<>() extension method. This will make your code a little more friendly for an eventual refactoring and for sure will save you from few nasty bugs.

Sample code:

var newTileData = new StandardTileData
    Title = "my tile",
    BackTitle = "my tile details",
    BackContent = "description",

                     .WithParam(x => x.ViewModelParameter, "some value")

Piece of cake!