From: DeskNow Knowledge Base
http://www.desknow.com/kb/

How to sync with Palm devices
http://www.desknow.com/kb/idx/17/126/article/

You can sync your Palm device with DeskNow using a third-party software.  

The software that we currently recommend is provided by Synthesis AG. Its functionality is completely equivalent to the software for PocketPC, so please consult this article for installation instructions.