What's wrong with PDF? It's an open standard and displays beautifully on screen or in print. I can resize it to any size and it still renders perfectly (except for embedded bitmaps of course). I'd much rather read a book in PDF format on my screen then have to hope that a website renders properly at a size that is comfortable for reading.
The main downsides to PDF are that it is not supported in all browsers, especially mobile or embedded ones and even in the browsers where it is supported, it is implemented as a plugin and so is slow to load.
PDFs open in 3sec on this computer. That seems small, but html+css pages open almost instantly.
There are lots of nice things about PDF, but when almost everything else I'm viewing is html+css it's unpleasant.
I don't agree. I can't reformat PDFs. I can't apply my own style sheets. If it's in two columns, I'm just screwed. With a website, I can resize the text, I can edit the style, etc.
