Hey developers, first of all, THANKS! This is going to be a great game, and I'm sure you will all make names for yourselves because of it.
I have been playing 2.3 for a while, and I must say, it seems almost playable (for a beta). There are just a few show-stopping issues--primarily, lots of impassable tiles. Every staircase, for example, cannot be used.
I can see you are adding and adjusting all sorts of things in the game. Personally, I would be most happy if just the show-stopper bugs were fixed, so a playable version of 2.3 could be released. A playable 2.3 beta would probably also draw more talent to the project.
After that, new features and tweaks can go on endlessly (and they will, because it's open source).
Even if you care nothing for my suggestion... thanks anyway guys!