> Whispernet only 'worked' because of the pricing structure they had with their MDN, the amount of books they were selling with it, and trying to break into the market and willing to eat some cost to do so. Also notice they retired it. That means it was not working pricewise.
3G Whispernet couldn't outlast the carriers getting rid of the hardware to support those frequencies. So yes, that means "forever" didn't work price-wise, in that Amazon didn't feel it was worthwhile to build their own outdated-tech cell network just to continue it, but it was still a reasonable "for most of the life of the device" offer - note that newer devices have 4g and still will work.
3G Whispernet couldn't outlast the carriers getting rid of the hardware to support those frequencies. So yes, that means "forever" didn't work price-wise, in that Amazon didn't feel it was worthwhile to build their own outdated-tech cell network just to continue it, but it was still a reasonable "for most of the life of the device" offer - note that newer devices have 4g and still will work.