There’s an e-book reader app, but it’s not going to rescue the newspaper and book industries (sorry, media pundits). The selection is puny (60,000 titles for now). You can’t read well in direct sunlight. At 1.5 pounds, the iPad gets heavy in your hand after awhile (the Kindle is 10 ounces). And you can’t read books from the Apple bookstore on any other machine — not even a Mac or iPhone.
And, in total, that's a good strong argument against choosing the iPad as a e-book reader.