Here is a useful AppleScript that I use to synchronize my mac with my phone over bluetooth.

Add this to crontab:

30 11,16 * * 1,2,3,4,5 osascript /Library/Application\ Support/iSync/SyncNow.scpt

Here are the contents of SyncNow.scpt :

tell application "Finder"
	set iSyncRunning to (number of items in (processes whose name is "iSync") is greater than 0)
	tell application "Finder" to set visible of process "iSync" to false
	tell application "iSync" to synchronize
	tell application "iSync"
		repeat while (syncing is true)
		end repeat
		if iSyncRunning is not true then
			quit
		end if
	end tell
end tell