Swapping from Feisar's iSync plugins to Apple's
I was using the Feisar iSync Plugin to sync my k800i with my Mac. Irritatingly this stopped working with the latest version of iSync. Feisar’s site has a page explaining why and what to do about it. Except, for me anyway, it missed out a fairly crucial step.
They suggest that you should remove the plugin and then rerun iSync and it should All Just Work. This did not work for me. What I discovered you have to do after removing the plugin is unpair your phone from the mac and pair it again otherwise iSync won’t sync with your phone.
For safety’s sake I forced my initial sync cleared out all the phone data; you may or may not want to do this.