The iSync application lets you automatically Transfer information from iCal calendars and Address Book contacts on a Mac to your third-party mobile device. For example, your third-party mobile phone device can be synchronized using iSync to display your latest Events, and your contact list can always be Up-to-date with your Mac.



Requirements: Mac OS X 10.5 or higher 
Platform: PowerPC / Intel

Download Apple iSync 3.0.2 for Mac OS
   Source: http://mac.brothersoft.com/apple-isync.html 


Enjoy :)