Apple Computer updated its iSync software today. Version 1.4 brings support for the Nokia 6600, 3620, 3660 and Siemens SX1.
"iSync now has calendar, contact, and to-do synchronization for the Nokia 6600, 3620, 3660 and Siemens SX1. With these phones iSync also syncs the Address Book picture to the contact info, so you can see a picture of the caller when the phone rings. In addition, Mac users in Japan can now sync over 110 Japanese mobile phones when they purchase a third-party USB cable."
The last point update to iSync was in October 2003. If you have a Mac with iSync already installed, just run Software Update. Otherwise, download the full version here (it's free).