AT&T is preparing to offer insurance plans for iPhone users, with pricing set at $14 per month, according to a new report. The Boy Genius Report has posted photos showing internal AT&T documents outlining the new service, which will be called MobileProtect and will be activated by downloading an app from the App Store. According to the report, the plan will be run by Asurion, with monthly charges billed through the app to the user’s…