Yesterday, Apple began offering in-store pickup for online orders of the iPhone 5s and iPhone 5c, giving users the ability to check availability at their local Apple retail stores and place orders for immediate pickup at the stores. But just 24 hours later, Apple has already removed the in-store pickup option for iPhone 5s orders, leaving shoppers with the options of placing online orders for delivery in October or visiting their local retail stores on their own to check on availability. In-store pickup of online orders remains available for iPhone 5c models. The reason for the quick backtracking on the iPhone 5s in-store pickup option is un