Apple is on the verge of discontinuing the official iPhone 4 bumper case, at least in its current form, a report indicates. 9to5Mac cites an anonymous source on the matter, providing little other detail. The move would make sense if the next-generation iPhone is switching to tapered edges as believed, although by extension it may imply that Apple is diminishing or completely eliminating the iPhone 4's status in its upcoming lineup. Since 2009 Apple has kept the previous year's iPhone around as a cheaper option.