Google Calendar and Apple iSync/iCal Synchronisation

A new application is currently in development called SpanningSync, which will allow two-way synchronisation between Google Calendars and Apple's iSync. This means that all you Apple Calendar Synchronisation applications including Microsoft Entourage, Apple iCal, iSync Compatible Mobile Phones and iSync Compatible PDAs can all be synchronised with Google Calendars. There is a video demonstration of the application being used on the application's blog.

Links
SpanningSync Home page