? These things are solutions to a problem that doesn't exist?
So let's see. I'm going to go to a place with no cell signal (some high mountain area for example) with friends, so now I have to take a few of these sticks, plus our cells and hope we are never separated by more than a mile or two? And why? So we can text? Sorry, just don't get it, especially when I can get walkie talkies that operate on secure freqs, have a much longer carrier distance and (should I want this feature) can text. And it is just one small item to bring. Maybe you haven't looked at Motorola walkie talkies hardware in the past decade? Cell phones haven't been the only communication hardware to advance in capabilities and miniaturization.