Taken from the DUX blog:
"Given DUX is receiving many delays since its first release date announced at april 2008, I'd like to explain a bit how these delays have been occurred and how its all for the good of the game.
Originally DUX has been intended just to be side-project with only 5 stages and simple scoring system. During the development our quality bar to meet has been increased from time to time, so upgrading and expanding is what we're using the delays for. Now the game is a full-scale project with 6 instead 5 stages. Additionally, most stages are longer and featuring way more enemy types then before. The game also now features a more advanced scoring system, given the bullet soaking ability of your pod. The difficulty settings are more balanced as well, to make the game a fair but still challenging experience. All in all the game has a lot of advantages from its extra time given, which is of course a good thing for players.
To give an exact release date is currently hardly possible, because this depends on very hard to estimate factors. From now on I'll report how thing going with the release of this game once a week, so more on this in the next week."
I am actually pretty excited about this one chaps...