Film Installation

I have made it my priority to not use an Apple product until I have covered it with a film. I just ordered Zagg's InvisibleShield from their website, only to discover that the delivery date was way after the date that I get my iPhone. If I break my tradition of covering Apple things before using them, will I still be able to install the Zagg film after I have touched the screen? I have heard reports that the Zagg discolors after you have touched the sticky backing, and I am sort of worried. I cannot live without my iPhone, but my iPhone cannot live without clothes!