This is my problem and it hit home recently when I upgraded my smartphone and discovered there's no Kindle ap for my new model phone and I couldn't read the rest of the book I'd bought on Amazon with any of the available aps. I enjoy the ability to stop reading on the Kindle, PC, Laptop, or smartphone and being able to pick up where I left off on the other devices. And what happens if the vendor where you bought your DRM'ed e-book goes under or is bought out? I think of buying e-books as being more like renting movies.

Because sometimes electricity fails and eventually the batteries in the flashlight and smartphone and laptop and ereader run down. Then again, sometimes people want to pretend there is no electricity or cellphone or laptop or ereader. I want a candle with a USB outlet to charge my smartphone