Image: Guillem Valle/GSMA

As mobile has gone mainstream, so the annual Mobile World Congress (MWC) expo has steadily broadened its remit and seen attendances rise. There's still plenty of traditional smartphone action, of course, but a lot more besides -- including the Internet of Things (IoT), the next-generation 5G networks that will carry all this extra mobile traffic, and up-and-coming technologies like virtual and augmented reality.

This year saw nearly 101,000 visitors descend on Barcelona for MWC 2016 -- up from 93,000 in 2015 and the f ...

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