The idea of convergence, of one device replacing several, has long been a popular theme in forecasting high-tech gadgetry. It's also something that doesn't happen as often as predicted.
Some of the reasons relate to design and technology. It's hard to make a multitool as elegant for each individual function as specialist devices are. A form factor that's optimized around, say, being a phone demands serious technical compromises when it comes to a totally different function, such as taking a picture. And rapidly evolving technology means some functions in a device are inevitably behind the technology … Read more