For many of us, when we send a text or make a call from our cell phones, we’re relying on 4G. Though for as much as we rely on it, very few of us know what it actually means. In reality, the “G” in these terms only stands for generation: generation of wireless mobile telecommunications technology. 2G brought us voice communication, 3G gave us access to the web and some video services, and 4G made things like the app economy possible. But with the applications of our wireless technology expanding at such a rapid rate—from smartphones and tablets, to full Internet of Things (IoT) implementation—even 4G is no longer going to cut it.