As Hurricane Irma flooded the streets of Miami on Sunday afternoon, voice after voice beeped to life in a Miami channel on the walkie-talkie app ... need their cell phones if they want to use ...

So, you know, kind of like Inspector Gadget, or those Boost Mobile phones from 10 years ago. But Apple's Walkie-Talkie is actually a bit different than the walkie-talkie features that used to be ...