Did anyone (who has an iPhone) tried the funambol way of synching it ?
Theres' an app you can install on the iPhone (that the "best" way to sync OTA) and a connector you can install in Outlook.
I've setup the app in my Outlook a couple of minutes ago and it did not crash (yet), it was able to speak with the ZDB (seems to be compatible with the ZCO) and I was able to sync it several time without a itch.
Then any SyncML capable device is suppose to sync though
http://my.funambol.com.