Touchscreen Macintoshes

Ok so I was recently thinking about this and I found this article that talked all about it and why it wasn't possible. The only problems it really pointed out was how the touchscreen being vertical made your arm(s) tired. I understand the argument apple puts forth about the portable touch screen problems and peoples’ arms getting tired. The solution? Make a touchscreen laptop where the screen can fold all the way back so that it can be flat. Add a gyroscope so you can turn it around and the screen follows you, that way the keyboard isn’t in the way. For iMacs, make the stand detachable.

I do not see how that is infeasible in any way. Feel free to explain why/why not it is possible. I would really lke to see this function implemented.