The factory clear film that comes on the Optimus V also works great as a screen protector. Perfectly applied, no bubbles (on most)...don't even know it's there if you cut the tab off cleanly right at the glass edge with an xacto knife.The Triumph comes with a screen protector on top of Gorilla Glass right from the manufacturer.
Not sure why anyone would peel that off just to stick on an "official" screen protector.
I even left the plastic instructional film on the battery cover for some time, and it took a good deal of punishment away from the battery cover itself...since the film is right where the phone contacts the surface when you set it down.