I'm certain it's not an anti-glare.
I was actually buying this to replace my PS crystal (my fourth set, counting those that I purchased for my 3G) so I'm familiar with the packaging. I agree it looks legit-ish? but it's pretty filmsy and inside, it seems like the films were just thrown in. Truthfully, even though my current screen protector is insanely scratched up after spending so much time in my purse with my keys, I'd prefer it to what I found in the package.
That's a bummer that you got fakes.
We have the PS HD anti-glare screen protectors on our three iPads and two iPhones. We tried the crystal on my son's iPhone just to see if he'd like it better, but he knew immediately that he wanted to go back to the anti-glare -- he likes the texture better, and also that it doesn't show fingerprints.