Protective films, or "skins", are typically a great way to protect your sensitive and portable electronics. I've used Zagg's Invisible Shield on my iPod Touch 1st gen. and a BodyGuardz cover for my Macbook Pro for years now, and they've saved my equipment from some serious degradation.
Today I received the Wrapsol Protective Film Kit for the new iPhone 4. I learned earlier this week on the Macrumors forum that Wrapsol had some very serious QC issues on this particular production rush, and so nearly the entire batch was going to have any combination of scratches/blemishes/etc. So with that in mind, here is my tentative review: