I have been using the Sony Reader for about 5 months now and have really enjoyed using it. I have read about 7 books which is about normal for me. I would highly recommend the Reader to anyone who is a Geek and loves to read.
I noticed that Sony is planning on a new version of the Reader, which will have a diffrent button layout and two color choices. They have also improved the text contrast for easier reading. I will have to check one out the next time I am at a Borders store.