Thank you for checking into this. I'll give this solution a try when I flash Zubuntu again (messing with pdaXii13 at the moment.)
Well done!
BTW, I just posted in the pdaXrom forum, and unfortunately it was the first post in almost 1 month. The Zubuntu forum is not much livelier, and I assume this is a function of the Zaurus being discontinued and people moving to other platforms (maybe netbooks?) Too bad really, as these are awesome machines, infinitely configurable.