Just curious about that Shortcuts section in there - what's that for?

It almost looks like it's doing the same thing as the quickmarks (:he quickmarks).

where? the "command...." entries? those are basically javascript bookmarklets that are typically installed in your bookmarklets bar, but have now been assigned their own command. e.g., just type

:postToPinboard

when you want to bookmark the current page.

Sorry, should have been more specific. In your .pentadactylrc, under the Shortcuts section, where the first line is `map <Leader>r :o read<CR>`.

It looks like this is so that when you type <Leader>r, you go to google reader or something. Is that right?

With quickmarks, you press `Mr` or `M<buffer>` while you're on a page to set it, then `mr` or `m<buffer>` to go back there. It's pretty sweet :)