Xna Console allows you to debug and tweak your game on the fly by providing a simple text interface to an interpreter, such as IronPython. You can change variables, test code, or even play your game itself indirectly from the relative safety of a console, all while your game is still running.
Since Xna Console is designed to work somewhat like other consoles, it's easy to write your own text based games, or implement an interpreter other than IronPython.
These details are provided for information only. No information here is legal advice and should not be used as such.