The IoT revolution is gathering pace, impacting people's lives and the way they interact with the everyday 'things' around them. According to Cisco's 11th annual Visual Networking Index: Global IP Traffic Forecast Update, the number of connected devices will have grown nearly 2.5-fold, from 4.9 billion in 2015 to 12.2 billion by 2020, when global IoT spending is predicted to have reached $1.29tr, as outlined in a new IDC Internet of Things Spending Guide.