Hi Stefano, I didn't have enought time to end version two.. My blog posts referers to a previous version as you note.
There is not a big change between two versions on the Application service side, but i want to show more things on the wpf side.
I recommend you to look at the previous version (revision 839) so you can follow my blog posts serie about the example.
Let us know if you have any doubt about the example.