Over the last few months, the promised next generation of mobile broadband—5G—has started to shed its vaporware status. advertisement advertisement That doesn’t mean that everyone reading this can get crazy-fast internet. But today, all four nationwide wireless carriers offer consumer 5G services, complete with coverage maps so you can see if their network will work for you. But AT&T, Sprint, T-Mobile, and Verizon have rolled out the next wave of internet in a different way. The key difference among them: which slices of the layer cake of 5G frequencies they serve, each with their own appeal and flaws. At the top of this cake—the smallest portion made with the most expensive ingredients and with pastry-chef expertise—you have millimeter-wave frequencies. They can deliver the stuff of 5G hype, with speeds over a gigabit per second and ultra-responsive sub-10-millisecond latency, but they can only reach maybe a thousand feet. If you want … [Read more...] about Want crazy-fast internet? Here’s what AT&T, Verizon, T-Mobile, and Sprint offer right now