As part of a shift to lower repair costs, Apple has begun replacing iPhone 5 screens at its retail locations. The new display replacement service is priced at $149 and can be purchased with or without AppleCare+. Changes to Apple's repair policies first surfaced last month, where a town hall session revealed that Apple would begin in-house repairs of displays in June in an effort to save approximately $1 billion per year. MacRumors heard from a tipster this morning that the new repair policy had been implemented and the changes have since b