You may now watch the Dominoze Editor demo video here, or from the following links:
The Dominoze Editor comes with the full version of Dominoze, which will hopefully be released later this year. With it, you can create your own domino sets and puzzles, and share them with friends. The Editor comes with plenty of content, and has online tutorials and instructions to help you get started.
Stay tuned for announcements on the closed beta where you can try out a copy in advance!