From the article, it sounds like the Kindle* has a few kinks to work out. But what interests me most is that people keep trying. Every time a new book reader comes out, makes a big splash, then doesn't sell well, a lot of people say, "Oh, they'll never make something that can replace real books." But then a few months or a year later, someone tries something new.
So to me, the question is not if but when.
* Kindle? What kind of a dorky name is that?