I disagree with the author on the mouse issue. It’s simply not ergonomic to use an upright display with touch. A touchpad/trackpad/mouse is still a more elegant solution.
Now, if you pair this with the prediction that the desktop computer is going away, maybe it makes more sense, but that assumes the vast majority of users are going to be looking at a smartphone/tablet model rather than a notebook-style model.
Same thing with the smart phone as a remote control for the TV. Sure, it can be done, but what is the point of it.
Cellphones have a big issue with the metal sheeting radiant barrier now being installed in homes. Kills reception, so you have to use a microcell receiver connected to the Internet. As to the mouse, some form of mouse/touchpad will always be around. Not going to always reach out to touch the large display. But, yes, there will be changes. However, with the aging population, you will see a wider range of equipment uses. The author is talking about Windows 8 and there are still companies that use XP and systems that will not run on 7. This will widen. BTW, with 8 you are going to have to get a third-party DVD player. The new version of Windows Media does not have the built-in player.