IoT is already with us and if you take a look around you will see the evidence in the real world applications currently deployed, but we take them for granted. Examples of these IoT applications are:

Smart Cities – Traffic Management, Waste Management, structural health, noise urban maps, intelligent transportation systems
Smart Environment – Earthquake early detection, Forest fire detection, Air quality & Pollution detection, Avalanche and landslide prevention
Smart Water – Water quality, leakage prevention, reservoir level management, river floods detection and prevention
Security & Emergencies – Perimeter access control, Radiation & liquid detection, Explosive & Hazardous gasses detection, emergency service management
Smart Retail – Supply chain control, NFC payments, smart product management, and
Vending machine remote management
Smart Logistics – Quality of shipment condition, item tracking, fleet tracking, geopositioning, shipment/delivery management
Industrial Control – M2M applications, Environment control (HVAC), temperature control,
ozone presence, vehicle auto-diagnosis, Warehouse stock location
Smart Agriculture – wine quality monitoring, crop irrigation, green house control, park
management
Smart Animal Farming – offspring care, animal tracking, environment monitoring, toxic gas levels, animal health care monitoring, food history management
Smart Homes – temperature & humidity control, remote automation, lighting and ambiance control, energy efficiency appliances, intrusion detection systems, fire and safety alarms
eHealth – fall detection, sports monitoring, patient surveillance, equipment monitoring,
health and fitness monitors, ultra-violet detection monitors

These are just some of the more obvious IoT application already in common use today and they are evolving rapidly as the only bounds are the limits of innovation and creativity.
It is not just industry and consumer vertical markets that stand to be revolutionized, one other major business sector is already repositioning itself to reap the benefits, as it understands very well the concept of risk versus reward, and that is marketing.