[userbinator]

And we'll be expected to stretch our arms up to touch ever-larger-growing screens all day long?

At the moment I'm sitting in front of a pair of 27" monitors. Trying to use a touchscreen that big for extended periods of time is just going to be fatiguing.

[teamonkey]

I'm not saying it's going to replace mouse and keyboard but a screen that doesn't support touch at all will soon feel archaic. Even now I often find myself absent-mindedly trying to close windows with my finger on my dual-screen setup.

Remember that the ergonomics of a traditional workstation are driven by decades of mouse and keyboard input. As touch becomes more popular the layout will change to support that.