...contact. Contacts are shared among Google apps like Gmail, Google Calendar, Google Reader and more. As one use-case, Google says this API allows web developers to import a users Google contacts into their apps, as well as export their apps contacts into Google.

Google watcher Ionut Alex. Chitu writes, Hopefully, social applications will use this API instead of asking for your Gmail credentials and well see synchronization utilities for mobile devices, Outlook etc. He adds a caveat: The problem is that your Google contacts arent always your contacts: theyre mostly a bunch of people automatically added by Gmail because you replied to their messages.

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