I am still testing out OS X 10.5, and in the process need to ensure that once I convert my laptop I will still be able to sync my Nokia E70 with it.Out of the box, OS X 10.5 does not sync, but a simple install of the official Nokia iSync plugins adds the functionality back. So far the calendars, contacts and todos sync without any big problems.
One todo from the phone, that was set to not have a due date, was imported with a 2015 date, but that is not a real issue.
- Download the iSync plugin from Nokia.
- Install it
- Relaunch iSync
This should work with any of the phones listed on that page.