I don't have a kindle, but I do have a Bookean Cybook, it's much easier to read on than a screen, either Desktop or a PDA/Phone screen.
The amount of reading I'm doing has gone up dramatically since buying it but...
I've looked at buying more modern books but balk at the price of the ebook versions which are exactly the same price as the paperback versions. That combined with not being able to find most of the titles I would actually be interested in reading means I'm never likely to be converted into a content buying customer.
Gutenberg has so far provided me with enough content to keep me happy, and although as mentioned in the article the text is very old (and it feels old, both in terms of the syntax and the ideas being expressed) I've found myself reading a wider range of genres to compensate.
ebook sales are being hurt by the publishers thinking that it's has always been selling content while the customer thinks it's been buying a physical item. Take away the physical item and the content is not worth as much to the customer (rightly or wrongly).
Dedicated ebook readers are also far to expensive for what people actually want to use them for.