It's just a fantastic thing to protect your PSP's screen. As you can see in the pictures which I provided, this screen protector covers the hole screen and doesn't let scratches to appear. I advise you to buy this fantastic thing if you have PSP Slim or PSP 2000, it's really usable!
1. When you will be selling your PSP (as it always happen after couple of years) it will cost much more, because it was with screen protector on it and PSP's screen is without scratches!
2. When you will use your PSP, it's screen also won't have scratches because of this screen protector and it will be much more pleasant to use your PSP without scratches.
All in all, this fantastic, high quality screen protector must be yours. Without any doubt!