Apple is currently offering free Smart Cases to customers who are still awaiting shipments of their Wi-Fi + Cellular versions of the iPad mini with Retina display. Via telephone at 1-800-692-7753, Apple customer service representatives are offering either the free case or a free Smart Cover to customers who have been waiting for a new cellular Retina iPad mini, and call to inquire about the delay/status of the shipment. Following forum reports,…