I bought a zagg shield when I got my Inspire, it served its purpose (rather it needed to or not with the gorilla glass). But it eventually collected so much dirt+dust I decided to take it off. I never seen such a beautiful display before on my phone! It was clearer, and the colors were more vibrant. Plus the screen is a lot more "smooth" and a tad bit more responsive without the protector on. Perhaps other brands are better, but I've been screen protector free for about 3 months now without any issues! (Knocks on wood!)
Main Phone: HTC One X+
ROM: ViperXL+ v2.0.0
Main Tablet: Nexus 10
Rooted: Of course!
A democracy is nothing more than mob rule, where fiftyone percent of the people may take away the rights of the other fortynine. - Thomas Jefferson