On the currently newest Order of the Stick page, in the very first panel, do you see what it is?

You’re completely right; Lord Kubota stands there reading one of the books from the DnD 4th Edition core rulebook set, which he’s obviously ordered from Amazon.

It’s a small thing, I know, but it still warms my heart somewhat.

(And never mind the fact that from what I’ve seen and heard of the 4th edition, it represents a substantial dumbing down of the game. Which, according to my game-mate, is symptomatic of the game’s development since 2nd Edition.)