Do you use nm-applet or networkmanager or raw wpasupplicant?
Regarding the n810-slideout-kbd-xmodmap i forgot to include it in installer config.py, but it should be in SVN right now. Still a alpha release
(I am off to the mountains of poland with my tablet the next days, so wont be on.) Please report any issues with the system to http://trac.tspre.org/projects/nit-debian