I've got it working in Dvorak:

Grab us_dvorak.txt from the attachment here:
http://talk.maemo.org/showpost.php?p=37757&postcount=5

It doesn't seem to behave installed as us_dvorak, so we will override the Danish keyboard because it's abbreviated as "dk"

sudo gainroot
cp us_dvorak.txt /usr/share/X11/xkb/symbols/dk
cp us_dvorak.txt /usr/share/X11/xkb-chinook/symbols/dk

vi ~/.btkeyboard
Change kbdlayout=us to kbdlayout=dk

then run bt-kbd-remap.

Optional:
cd /usr/bin
ln -s bt-kbd-remap ma
(dvorak users will probably see why )