This has been a very interesting topic. I just recieved a gift card for my Bday and I was thinking of buying a Kindle, however when I went to my public library I saw their ebooks can be downloaded on almost all devices save a Kindle. :( That hurts. I love Amazon dearly but i think they are shooting themselves in the foot. I also agree with the statement beta vhs.
Im a high school librarian and we are currently looking at e readers. We have decided to go with the nook only because students will be able to download from public libraries in our area. It will also give them more options. I'm no expert but it sounds like the nook is winning. I hope Amazon changes their strategy.