XML storage and processing on Palm

[Anonymous]

Hi
I want to port a vocabulary-trainer I am writing to J2ME. The vocabulary files are stored in XML.
This might be a stupid question, but I really cound not find the answer on the net:
# Can XML-files be stored as flat text-files on PalmOS or do they have to be transformed into .prc-files? What about storage on other mobile devices (phones)?
And:
Does someone have experience with reading XML-files with a size of 200k to 500k and hold the items as objects in memory? This works fast and fine on my Linux box, but does it so on a Palm?
Thank you