Though we've seen dozens of film screen protectors for the iPhone and iPods in the past, U.K.-based PhoneDevil's lineup is interesting for one primary reason: the so-called Privacy Edition ($17) is a properly cut piece of 3M privacy film that prevents your iPhone's screen from being entirely readable from its sides, creating a lenticular dimming effect from the left and right. We weren't totally impressed by the included applicator card, which doesn't…