BusySync

BusySync screenshots

BusySync allows multiple users to share and edit iCal calendars on a local area network and sync iCal with Google Calendar.
Main interface
BusySync 1.0 : Main interface

Alternative downloads

WD Sync
2.0.1.93
FREE
Utility that lets you sync your file to the My Cloud device on your network.
Missing Sync for BlackBerry
2.0.3
It connects your BlackBerry phone to your Mac to sync contacts and other data.
Missing Sync for Palm Pre
1.2
Sync contacts and calendars with your Mac computer.