It is here! The "Playable" update is released! After waiting only a few days, you get a simple one level demo of the game that can be played on DOS or some Windows operating systems (from experience it works with Windows XP Pro). The source code will also be released soon, but I feel like I need to tidy it up a little.
The demo can be downloaded here or at the downloads page.
If you do not have DOS or your version of windows does not support .COM files, get DosBox here