Mine isn't, and it wasn't when I got it.
My first iPad 2 had a bunch of dust under the screen. I returned it and got another one that ended up with 3 dead pixels. I returned that one and got another one that had dust under the screen again. They agreed to exchange one last time but basically blamed the dust on me saying that I must use it in a dusty environment. (I don't. It goes back and forth with me to an office building and is kept in a dedicated pocket of my backpack. When I'm not using it. I also use a port cover and headphone jack cover to keep dust out.)
So my final one appeared perfect at the store under their lighting, but when I got it home and started putting my back cover and a new screen protector on it, I noticed a scratch on the screen. It's on the black bezel area, not the part of the screen that actually gets used. It also had two small specks of dust under the screen.
I wrote an e mail to Tim Cook and he had one of his "customer relations managers" call me. I told her my story and how the last genius I talked to had blamed the problem on me and that the final unit I got even had a small scratch on the glass. She told me that iPads are a mass produced item and the glass is not the type of glass they would put on the Hubble Telescope or anything, so that she was hoping I was happy with this final iPad I received. In other words, I was politely told to buzz off.
Long story short, I have never gotten an iPad 2 that was perfect. It would have been nice to at least be able to say I scratched it on my own rather than getting it pre-scratched from Apple, but at least it's only on the bezel area, and with the screen protector on I can't tell it's there anyway. I have learned to live with it and I still enjoy my iPad immensely even with that small scratch.