Apple is known to experiment internally with a crazy ammount of concepts, out of which very few make it into actual products for sale. They're pretty conservat

Apple is known to experiment internally with a crazy ammount of concepts, out of which very few make it into actual products for sale. They're pretty conservative on the types of products they launch and careful enough to not pollute their existing line-up with whacky products that don't fit with their vision of how a product should be used or if it would cannibalize their other products. Their MacBooks still don't have a touchscreen even though they could easily add a touch digitizer for almost no cost at all but they just don't want to mix touch with laptops for some reason, unlike the PC laptop makers who seem to have no issue adding that.