A long time customer of the invisibleSHIELD line of products, I was somewhat surprised to receive the email announcement that an iPhone friendly version of the popular film shield was finally available. One of the first things that came to mind when I opened the iPhone was "I hope Shieldzone comes out with something to protect this screen". According to Shieldzone, the full iPhone kit – more specifically the screen protection – will not decrease the performance of the touch screen.
Personally, I think I’m going to forgo the kit this time around due to a number of reports that the iPhone screen is of exceptional quality resisting such abusive treatments as: a) being jostled in a ziploc full of keys, and b) having the face of the phone purposely abused with a single key. Your results may vary of course..