Apple products are back at Costco after a four-year absence that stemmed from a disagreement between the two companies. At our local store in Gaithersburg, iPhones were on the shelves at the beginning of this week — but the rest of the products were being held until Apple’s official display cases arrived. The store will be carrying iPhones, iPads, iPods and iTunes cards at a discount, but it won’t have Mac computers.
