1. absolutely no, the article talk explicitly of "phones and drones";

2. No, it's related to "phones and drones", I've explicitly written that this device make sense in niche application, microvolt application like "preserve the state of small amount of RAM";

3. I don't think the name matter, can be battery, generator, whatever: microamperes remain; Moreover isotope based battery isn't a new technology, you can buy these kind of battery from electronic industrial shops. EEVBlog on Youtube also did tests and debunking.