If you’re not on Linux or you can’t do a hotsync with your Linux yet, this post is not useful to you.

pilot-xfer -p usb:/dev/ttyUSB1 -b palm_backup/

I found this command line — that generated a backup of all files on my Treo’s internal memory — at Atul Chitnis’ site while trying to look for a way to sync my AvantGo with J-Pilot. Syncing with J-Pilot used sync my AvantGo, too but it stopped after I upgraded my OS.