My MacOS X

iSync makes it even easier to make and keep your dates. That’s because iSync  synchronizing software works with over thirty cell phone models, as well as multiple Macs, your iPod and your PDA devices.

iSync is used to synchronize contact and calendar data from Address Book and iCal with many non-Apple SyncML-enabled mobile phones via a Bluetooth or USB connection.

iSync located in /Applications/ folder

Note: Some devices being supported via manufacturer and third-party iSync Plugins.

Here list of links to iSync plugins for popular brands

BenQ Siemens

• BenQ Siemens plugins

Samsung

• Datapilot
• Mactomster
• Nova Media

Sony Ericsson

• SonyEricsson
• Feisar
• Mactomster
• Nova Media

Vertu

• Vertu software for Mac

Nokia

• Plug-in to your iSync from the table below

Want to make iSync sync automatically ?
There an easy way to get the iSync software to  auto sync every x minutes.
Follow an Apple script to automatically tell iSync to sync:

tell application "iSync"

    if not syncing then
        synchronize
        repeat while syncing
                delay 1
        end repeat
        quit
    end if

end tell

Set it to run at period intervals using Automator workflows.