I sure hope there's a way to disable the touchscreen. My ThinkPad has one, and I hate it. I never want to touch the screen on purpose, so its only function is to unexpectedly move my cursor when my sleeve or something brushes too close.
> I sure hope there's a way to disable the touchscreen
Apple is usually good at letting users turn off most features.
The article suggests the touchscreen will be a secondary input mode and the keyboard + trackpad (or mouse) will still be the primary mode of interaction.
I suspect it's that phone and iPad screens do get dirty that way, but they're very easy to regularly wipe clean compared to a laptop screen, to the extent that it's not as noticeable that we're doing it.