LOL.No, it evolved into a role playing game. There is a vast difference. Gygax had to create and/or adapt things as he went along. He could not just sit down one day and say I am going to design a RPG. No one even knew what and RPG was. To say that his orginal creation is the end all of what is a role play game is like saying a Wright Brothers Flyer is the end all of what a aircraft is.
Let's see:
He knew what roleplaying was.
He knew what a game was.
So all he did was combine two well known things to create a roleplaying game.
You're right about one thing though:
It wasn't really Gary Gygax who first thought about roleplaying. That was Dave Arneson's contribution. Check out the wikipedia entry for some background info.
But my main point is this: AD&D was released in 1977. That's three years after OD&D and six years after Chainmail. And you claim that after all these years he still hadn't intended it to be an rpg?! Have you even read any of the AD&D books?
P.S.: Please be more careful when you're quoting people. Your above posts attributes several things to me that I did not write.