First thing is that NodeJS is not a JS engine, V8 is. Second, http://notinventedhe.re/on/2011-7-26. That is from http://nodejs.org/community/ which makes the terms quite right, i'd say.

Node is V8 and a standard lib. Node is not an abstraction around http (which is what RoR is).

"Node.js is a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications."

From nodejs.org

Right, and "fast, scalable network applications" !== "http abstraction layer". Node doesn't even come with an http abstraction, it comes with the standard request/response objects that nearly every standard lib ships with.

Node is an abstraction around libev. Http just happens to be the one source of events.

A standard library is nothing but the default framework built into the runtime system.

I don't see what you mean, the author is comparing Node.js to RoR so what you are referring to as a "framework", is not the same thing as the author. He is referring to a framework for writing web applications. Node is a "framework" for writing JavaScript applications that are compiled by V8 and executed on a *nix or Windows machine.