I added some of my own hacks/changes to the wiki:
http://wiki.openzaurus.org/Hints#Hints_And_TipsAnd if anyone figures out a good way to have the functionality of hotkeys change based on rotation I'd appreciate it if you'd share the trick. I already looked at using /etc/zaurusd/hinge-(close|landscape|portrait).d to call xmodmap, but doing that seems to confuse keylaunch.