Would it be possible to add an option to export the map in some format that it can be used in a game?
I can help you with that if you wish.
I'm surprised there's actually interest in this thing as a practical tool, heh! I figured folks would at most treat it as an interesting novelty, or maybe look at the result to stir some layout ideas.
What kind of export format do you think would be useful? An .INI file with each room listed with its position/properties? Or some sort of delimited string output of the map grid that could be parsed into usable data?