Apple's suppliers are preparing the next generation iPad mini for mass production and it will "likely feature a high-resolution screen from Samsung" according to The Wall Street Journal, contradicting a report from earlier today that claimed the next iPad mini would not have a Retina display. The piece also claims that Apple is considering offering multiple colors of back covers for the device, possibly complimenting the rumored lower-cost iPhone which is expected to have plastic back covers in a number of colors. Apple is working with suppliers in Asia on its next iPad mini with a high-resolution "retina" display, unlike the current iPad m