splash Masque Clear Screen Protector for iPhone 4 4G  4S AT&T and Verizon (3-Pack + 2 Bonus Back Films)
I have had very expense screen protectors in the past, but let me say this: YOU CANNOT BEAT THIS VALUE.  I can't tell that much of a difference between this item and a power support screen protector.  I will be using this brand from here on out!