The UI for the converter kind of stinks right now because I have been concentrating on functionality.  I am now rendering XAML via plug-in modules.  In addition a preview of the rendered XAML is displayed after generating the XAML.

The UI is really basic right now:

Click the Load Mockup button to locate a .BMML mockup file.

The BMML document is parsed into a set of .NET objects.  For now, the controls are displayed in a grid.  This is going to be removed.  It was mainly used while coding the Mockup XML parsing logic.

Clicking generate will generate the XAML in the texbox at the bottom of the form.

In addition to generating the XAML, it is parsed at runtime and the Mockup is compiled at runtime and previewed.

That is the preview of the XAML rendered from my mockup below:

I still need to include the properties and sample data in the Xaml controls.  But for now, we have a start.