Not really true, I have one that I wear regularly, and it could be used as one in limited fashion.
There's also a little Easter Egg in it that lets you see the entire Glass team, and look around at them, up, down, etc. and it's pretty engrossing, so you can use it as limited VR as well.
Re:Why I'm Returning Google Glass
by brandynwhite on Thursday July 18, 2013 @10:00PM
(#6067879)
A little late but relevant https://www.youtube.com/watch?v=IzQCSis4kKs
I've worn one (very briefly) now, and let me be very clear: you can not superimpose labels or images on anything you see in daily life with Glass. This is a physical limitation of the hardware, and it is absolute. This hardware will never, ever, ever be able to do that.
And it's unclear to me if the hardware for Rainbows End/Halting State augmented reality will ever (or at least in this generation) exist if Glass-like heads-up-display hardware can not be successful in its own right.