ISync
From WikiMac, Everyone's Mac Knowledgebase
iSync allows users to synchronize data across multiple computers, PDA's, cell phones and iPods. You can synchronize contacts from Address Book, dates from iCal and bookmarks from Safari.
iSync requires a .Mac account.
Mac OS X 10.4 now uses the .Mac System Preferences pane and now has the ability to also sync keychains, Mail accounts and Mail rules, signatures and Smart mailboxes. iSync is still used in Mac OS X 10.4 to add devices such as Palms and cell phones. Beginning with iTunes 4.8, iSync no longer synchronises iPods; these settings have migrated over to iTunes.
