Not personally tested with a PalmOS device, but I've been using ScheduleWorld (SW) and their free SyncML client for Outlook to sync with a WM5 device. No complaints. It was fairly easy to setup with instructions. Basically my work Outlook is setup to sync Calendar and Contacts 2-ways with Google Cal and GMail Addy book respectively. Then my home PC is setup to pull from SW to OL. Give it a try and let us know.