Alex Wilson
You forgot possibly the most useful feature!
If you have an existing library of ebooks/word documents etc, the Kindle comes with its own email address that you can send stuff to in various formats....which then quite miraculously arrives on your Kindle in a readable format! I found this incredibly handy as I had around 300 books floating around my PC in various formats.
I did have to download a 3rd party converter to convert .lit files to .HTML or .doc format before sending them in batches to the email address, and there's still no easy way to convert epub format books so there's still plenty of room for improvements.
Another niggle is the 'collections' method of organising your books, it can only be done manually on the Kindle which (with a large number of books) is VERY time consuming! Surely there must be a way to sort this out from the PC?
Overall I'm really happy with the Kindle 3, it's a pleasure to use once its fully set up and so far I've actually been reading more than usual, lets hope that lasts!