That's the "rightfull.xkbd" layout if I'm not mistaken... yes, that's exactly what I see, but it doesn't work, pressing keys doesn't do anything...
Launching Rubybox from terminal gives me this output:

~ $ rbox
DOSBox version 0.73
Copyright 2002-2009 DOSBox Team, published under GNU GPL.
---
Sorry - server Keyboard map doesn't contain either 2 or 4 KeySyms per Keycode - unsupported!
CONFIG:Loading primary settings from config file /home/user/.rubybox/Games/commander_keen_-_episode_4.conf
ALSA lib seq.c:935snd_seq_open_noupdate) Unknown SEQ hw
ALSA:Can't open sequencer
MIDI:Opened device:none
MAPPER: Loading mapper settings from /home/user/.rubybox/.mappers/mappercsa.txt
X connection to :0.0 broken (explicit kill or server shutdown).
killall: dosboxbin: no process killed

I guess "Sorry - server Keyboard map doesn't contain either 2 or 4 KeySyms per Keycode - unsupported!" is the part that tells me something is wrong with the virtual keyboard, but I don't know how to use this piece of information...
Launching xkbd from terminal (no rubybox or dosbox involved) gives me the exact same error, except that upon exit it kills my D-pad and makes impossible to "click and run" or "click and select" using the touchscreen in any application (on a stylus click the whole line I'm on is selected... weird...)

If it is of any help I'm using an N800 with the latest diablo release, installed apps mostly from Extras (except latest Abiword and of course Rubybox and Dosbox) and using Qole EasyDebian (even if I don't think this can do anything to the system itself...)