If you subscribe to this page: http://www.styleforum.net/tag/viberg/threads
You will be notified when there is a new preorder thread. Actually, I would recommend anyone interested in viberg subscribe to that thread. You can see the tags in the tag section on the right hand column. Just click on a tag and you'll go to the main page of the subject. Click on threads, and you get taken to the thread page. Then, just use the subscribe function.
Pass the word (it's pretty useful).
This is a great feature!
Looking at that page, I'm wondering if there was ever a part 3 after that lasting and soling thread.