Really? I personally feel adding a touchscreen to a laptop is pretty much useless. The smudging of the screen far outweighs the negligible usability improvement

Really? I personally feel adding a touchscreen to a laptop is pretty much useless. The smudging of the screen far outweighs the negligible usability improvements (are there really any?). At any rate, Apple has already been using their touch expertise on MacBooks. Their touchpads are highly regarded, and they recently added Touch Bars to the new MBPs.