A lot of people are just plain faster at typing on a qwerty keyboard.. So that is why I think a lot of folk would still kinda, "hang on to the laptop as well."
Right now, voice interpretation still kind of sucks. Sometimes I will send a text by voice, and its totally off a good 20% of the time. That's unacceptable results for serious work.
Actually one of my funnier voice 2 text, which was supposed to be something like, "I guess so buddy, but I'll see you later." Turned into something like, "Whatever nanny, we got to work it better."
So obviously, if you are doing serious work, you are still far better off typing stuff out, and touch-screen qwerty is not as conducive to quick and accurate typing as it is on a plastic molded, "old school," omg, keyboard.
That's why I think the Surface is so slick, as its like a tablet, with an actual keyboard. I just want to wait a couple of generations, before I dive in. I want it to run music soft, as well as a desktop.
So, just in keeping with the thread. I believe the Mac Pro's days are numbered. Why should somebody buy one? Even if you are the Pixar Department @ Walt Disney Studio's, can you not just use Virtual Machine's and Cloud Deployed Soft.
I suppose if you are adamant about controlling your intellectual property; - perhaps Disney is now a terrible example. If you are "Hertz Rental Car." You can do all your back office work with Virtual Machines, the occasional Laptop, an array of Tablets. And obviously, all your employees have personal smartphones.
Its the world right now...
Cheers