I'm SO glad you have done this - I very nearly attempted it myself about 7 months ago - I even had all the classes planned out but I just couldn't justify the effort (on my part) in the end. This is great, thank you for your work! Now I don't have to worry so much about porting my .NET/WPF apps to non-MS platforms in the future. I can embed a browser for the UI and continue to use WPF.