It's an interesting idea combining learning a language with roguelike play, but it doesn't fall flat on the setting/plot side as you might expect. It has a compelling backstory and setting. The idea of the lingwall would stand on its own as a premise, even without being tied to language learning in gameplay.
EDIT: Unfortunately...it's horrible. The display flashes every time you move; sometimes the movement keys scroll the display up and down for no discernible reason and you have to close the game; there's almost no feedback as to what's happening when you try to take actions; and finally, the controls are utterly bizarre.
There's a lot of potential in the idea but in its current state it's virtually unplayable. Not ready to be open to the public, I'd say.