This is not so much a review of the content, which has already been covered well by other reviews. I'm giving the book five stars on that merit. However, those purchasing the Kindle version might wish to know that the typesetting is going to be a bit different than most of the books I have come across. The font is different, and in my opinion a little hard to read. It looks as though the pages were just scanned in from a poorly typeset book. The baseline jumps up and down in the middle of words sometimes, and a few of the characters in the font appear as though the thinner parts did not fully scan in. I'm not sure how this is possible, because otherwise it acts like normal text. You can clip to your clipping file, do word look-ups, and so on, despite the fact that it looks like a picture of words. It also seems to take just a little bit longer to load the book than is typical.
If you really want the material, it is not a large enough problem to avoid purchasing the Kindle version. Despite the oddities, it is certainly easier than accessing TalkOrigins via WhisperNet and the Kindle web browser.