So I can steal someone's phone, and just have it remind me of all that user's private info by walking around? Nifty.
Edit: I know the above is glib, and I'm not trying to rain on the parade of unbelievable achievements in data-wrangling that are going on here (I'd love to hear how it's done computationally), but I don't like knowing that all the privacy controls something like this deserves will be rolled out hastily in response to someone's life inevitably being ruined by the careless trust of one's life to a device that can fall out of their pocket. It's easy for the savvier of us on this site to say "serves them for not thinking to take precautions", but when we make it so easy to give a third party the reins, even we get complacent.
That isn't a problem with Google Now, that's a problem with smartphones generally. Even without Google Now, you can log onto someone's Facebook account, read their emails, read their texts, view their calendar, etc.
Edit: I know the above is glib, and I'm not trying to rain on the parade of unbelievable achievements in data-wrangling that are going on here (I'd love to hear how it's done computationally), but I don't like knowing that all the privacy controls something like this deserves will be rolled out hastily in response to someone's life inevitably being ruined by the careless trust of one's life to a device that can fall out of their pocket. It's easy for the savvier of us on this site to say "serves them for not thinking to take precautions", but when we make it so easy to give a third party the reins, even we get complacent.