At press time, Apple’s iSync doesn’t provide support for the Motorola RAZR V3x and V3xv natively. All’s not lost however, thanks to Sam from Australia you can now download a plugin that will make iSync work with your RAZR. At least until, Apple releases an official update to iSync.
You can find the Motorola V3x plugin at Sam’s 2 Astronaut site. The plugin requires iSync 2.1.1 on Mac OS X 10.4.5 or iSync 2.2 on Mac OS X 10.4.6.
Please note the caveat provided by Sam, before using this plugin to avoid any inconvenience and/or data loss.