I wish Amazon's ebook reader showed the footnotes in margin as his blog does. They weren't even shown on the same page.
Instead you had to follow a hyperlink to the last appendix of the book. You could then read the footnote w/o the original context; then you click a "back button" to get back to the text.
I hope more ebook readers find a use for the gigantic margins on widescreen displays. -- I would've preferred marginalized sidenotes over seeing two pages of content.
: This is what Amazon's "kindle cloud reader" does when you maximize it on a 1080p display.