Yeah its amazing stuff, not just plastic film. You can beat the crap out of it and wont get any scratches. The shield itself can scratch reluctantly but much less easily than the device itself and you just peel it off, send it in, and they send you a new one for free. Lifetime goodness! And once its on it really is near invisible, its great.
Hm, my whole question seems to have turned into an ad for Invisibleshield
Yeah I'm curious about glare as well. A friend of mine has some extra maybe ill just stick a piece down in the centre and see if i get less or more glare than the surrounding screen when using a book light.