In the TODO list there should be also a way to use the n810 hardware keyboard. Presently, with 'keycodes false' in the prefs file, the blue chars (i.e. those you get with the Fn key) are not recognized.
I tried to set 'keycodes true' but nothing seems to change, either in the keyboard layout or in the effect of the fn key. Maybe because I had no keycode translation file at hand?