So i picked up the ps crystal skin and returned my agent 18 case. It costed 15 bucks. Comes with 2 screen protectors. Installation is really easy. I just cleaned the screen off with the iphone cloth. Then i peeled the first skin and placed it on. It was really easy. And i got to say it IS crystal clear. You cannot even tell it is on unless you look at the home button or the ear speaker. I took some pics but you cant really tell from them. It is SO FREAKING CLEAR. However smudges are still existent like the regular screen.