I've come to dislike the pdf format more and more with time. It's great for printing, it's great to show documents really as they are, and it's bad when it comes to... Well, about anything else?

I feel it has become an standard of document viewing when it should have never gone beyond document sharing.

I totally see what you mean. For the most part, I have no trouble deciphering the garbled equations on the Kindle based on context and general understanding and subsequent description. When I do struggle, I tend to fall back to the PDF to clear the confusion up.

PDF is my favorite book format. I like the idea of reflowable text, but my experience is any book with pictures, tables, or math looks pretty terrible as an epub or kindle book. Books that would be suitable for Kindle (usually fiction), I find listening to as an audiobook much more convenient .

I have started to dislike pdfs a lot more since I bought an e-reader. A lot of them are basically scans of pages and basically there is no reflow; I just have to constantly zoom and scroll which is a major put-down.