Apple is expected to introduce a large-screened iPhone 6 with a 4.7-inch model arriving this fall and a 5.5-inch version debuting early next year. Though this large iPhone may cannibalize iPad mini sales, Piper Jaffray analyst Gene Munster does not believe this shift in sales will have a net effect on Apple, reports CNET. In a Monday note to investors, Munster argues that many iPhone owners will accelerate their upgrade to buy the iPhone 6 instead of the iPad mini, while other customers will purchase a bigger iPhone and pair it with an iPad Air. The net effect on Apple is an equal amount of sales even though the distribution among