Quote Originally Posted by Thanos View Post
Did you even read the letter before posting?

Now, I realize that this hardly makes up for my tardiness, but there’s something I’d like to share with you all: a screenshot of the long-awaited “My Little Chocobo” system!

As you might have guessed, this system is still under development…and the name is obviously still up in the air.
"Materia" was also a temporary name before they made it official.

That's not to say I don't like the name Materia (in fact I love it) but that's just to say it's happened before that they've kept a prototype name.