FYI: Article has nothing to do with memory pointers or linked list peeks, and everything to do with DOM attributes of HTML5 elements and attributes.
It's presumably a reference to old time tables of "peeks" and "pokes" showing what each memory address controlled, or somesuch.
Inspiration: Beagle Bros “Peeks, Pokes and Pointers” chart for Apple ][ (+)
(+) links to this: http://www.lazilong.com/apple_II/bbros/
One of the common refrains in the comments was that the iPad includes top-of-the-line support for a perfectly open, tinkerable platform: the web. Thus, the "HTML5 Peeks, Pokes and Pointers" chart was born.
Also, I just purchased a real live physical original Beagle Bros "Peeks, Pokes and Pointers" chart to hang up in my mancave^Woffice. Next to my Apple //es. Plural. So there's that.