I remain unconvinced. The fact is, Apple's iBooks is just too darn convenient. And it even lets you sync books with iTunes, so they're easier to back up. And I'm certainly not going to get another e-reader now that I have the iPad.
Guess I never bought into all the Apple hate, really. I'm quite happy to get all my music and books from them.. If this upsets anyone, well, I'm sorry, but them's the breaks.