Apple iSync v1.4 is Out

and available for download via the Software Update preference pane or from this Apple web page. According to the ReadMe file,

iSync 1.4 includes support for more Symbian OS smart phones and the iPod mini, as well as stability improvements. Before you install iSync 1.4, you must install iCal 1.5.1 or later. If you are using Mac OS X version 10.3 and plan to synchronize a Bluetooth mobile phone, you need to have Bluetooth version 1.5 or later installed.