Some Ubuntu guides for Palm syncing are here;
https://help.ubuntu.com/community/Ho...esearch=Titles
I've always found syncing my Palm (both an E2 and a TX) a bit hit and miss, but others have found it painless. I guess YMMV.
Generally, you can use gpilot to sync your contacts to Evolution or kpilot if you're using Kmail. Jpilot exists as a stand alone GUI syncing program.
Which ever you choose, I'd also recommed using Pilot-Link
Pilot Link once in a while to back up the whole Palm. While it's a command line tool I've found it more reliable than the GUI ones (you're best off turning gpilot/kpilot off when you use it).
All of these should be available in Ubuntu's package manager.