http://www.theverge.com/2013/3/6/4069812/microsoft-bill-buxton-smartwatch-history
This is a fascinating article about the history of smartwatches. Bill tries to get across the idea that we've just arrived at the tip of a multi-decade long process of developing these watches.
"1984, that is 18 Moore's Laws ago, that means the chip in this today would have 250,000 times the compute power," explained Buxton. "Every one of these things teaches us." He jokingly argued we should, as an industry, be asking what we've been doing for the past 20 odd years "instead of patting ourselves on the back at how genius we are about making all these new hot gadgets like smartwatches." It's the long nose of innovation to reach device potential, something that Buxton argues takes years or even decades."
I LOVE how he talks in terms of Moore's law or processor power doubling - this is exactly how I think!