That's what I'll like to ask too, "Will I harm the Oleophobic coating on my 3GS if I install a screen protector film?"
Mine has been naked for a month now, like it that way but yeah, my mind's not at peace cos I'm afterall a careless person. I've got a flip case but still, I'm conscious about my naked phone, especially when it's hot or when I'm nervous and my fingers get sweaty and the screen feels grainy (am I damaging the screen when it gets grainy and sticky?)..
Does Power Support Anti-Glare screen protector shift like what some say? If I apply it and 1 day, decides to remove it, will the screen be damaged in any way?