As the only one of M-Edge's iPad cases that we actively disliked, Flip Jacket ($50) is a canvas and leather notebook-like cover with a vertically-opening front cover and microfiber interior. Though the materials used in the case aren't bad, the proportions are topsy-turvy, with only the slightest quantity of leather as a top flap connector, a ton of comparatively cheap-looking canvas, and barely designed, reinforced panels to hold and shield the iPad.…