Can you imagine life without your smartphone? Seriously. The last time I forgot mine at home I felt a bit lost, disconnected, and just plain naked. Like I'd left an arm or a leg at home. Yet the fact that, according to a survey conducted by the Mobiel World Congress, 79% of smartphone users are never more than an arm's reach from their phones, I know I'm not alone. So when I started to hear rumblings that smartphones could be on their way out in the next few years, I almost choked on my coffee. How could such a useful-and addictive-device ever be pried from our hands?