Still don’t believe the iPad mini is on its way? It looks like several retailers disagree with you. AppleInsider has scooped up some blueprints from an Apple (AAPL) retailer detailing how iPad mini accessories should be displayed in stores. AppleInsider doesn’t know which store the blueprint comes from but does say that “the design shown in the illustration looks similar to in-store displays seen at major retailers such as Best Buy (BBY) or Target (TGT).” Current rumors suggest that Apple will officially unveil its smaller, 7.85-inch tablet by the end of the month.