I have both a Sony Clie and an ipaq with Windows mobile 5 on it and I just never managed to sync any of them with kontact. The Palm option worked somehow, although it often didn't sync calendar or contacts (I never figured out why), and sometimes it crashed my palm device so that I had to do a hard reset.
Windows mobile syncing never even came near to working (inspite of hours searching on the synce, opensync, ubuntu and other places, and reading every single thread on the subject, following the howtos and the like...)

Now with Intrepid it's worse than ever, because opensync-plugin-kdepim can't be installed.
I actually depend on my handheld for my work and I would really appreciate any help in this matter. Thank you in advance!