Well i have finally figured out how to sync my contacts and calenders via bluetooth on my G4 Powerbook and CDMA razr v3cThis might come in handy unless Apple has already updated iSync to include the RAZR V3c.
Apple iSync page.
To get the new version it looks like I need to upgrade my OS. Not sure if I need to do all this if I find a USB cable...
There's this too, OnSync 1.12 - A mobile phone's contacts synchronizer for MacOS X.
And this, Datapilot.
Motorola Razr reviews.