London's Gatwick Airport has installed 2,000 Bluetooth Low Energy (BLE) beacons across its two terminals to help passengers navigate their way to flights, as well as receive push notifications. The beacon system, known as the "indoor blue dot," was provided by Pointr Labs.

Companies are jumping on the mobile app development train as a way to improve business.

Because beauty retailer Sephora views mobile as a key part of a customer journey, the company says it's doing everything to allow customers to discover, play and learn both online and in store.

From boardrooms and shareholder meetings to conferences and collaboration circles, it seems everyone is talking about the fourth Industrial Revolution (i4.0).