US boffins are developing mobile phones which learn user's daily habits so that they can become "mobile digital secretaries".

Going beyond the calendar feature common in many current mobiles, the "smarter smartphone" learns about people's preferences by logging calls and noting when application like cameras are used. Location-based functions allow the phone to keep record where you work and socialise. The phone also makes note of Bluetooth pairing bonds, in theory allowing it to build a profile of who you socialise with. This information would be sent to a server which processes data and returns suggestions or reminders.

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