Not many things in this life are guaranteed, but since the dawn of the new millennium Apple's commitment to pumping out new hardware and services has pretty much been a forgone conclusion.
While most of those products are just new installments to their never-ending stream of, laptops, phones or smartwatches, some behind-the-scenes ventures might manage to break the mold. Those more far-out ideas are obviously kept under pretty tight wraps, so with a healthy dose of speculation (and skepticism)....