Have you ever used a touch screen that was not a handheld?
I don't know who down-voted you, I don't see anything worthy of a
negative vote (but I get a lot of those myself!), but I've been using a
touch screen monitor on a IBM ThinkCentre desktop that runs my
POS system. The OS is Windows XP SP3, haven't bothered to
even update to Win7. Most of the time I don't use the touch screen
as much, but my employees do. I prefer keyboard shortcuts. The
point I'm trying to make is that touch has been around for a long
time, not just since the iPhone arrived on the marketplace. My POS
works quite smoothly as well, no issues in 2 years I've been using
it (I bought my store from a previous owner). I've also got a mouse
for navigation...the user has a choice of 3 interactive devices!
As for "reach from the keyboard up to the screen", well now, in the
30-odd years I've been around these infernal contraptions, for the
vast majority of those years I tried in vain to prevent people from
doing just that...reach up from the keyboard and touch the screen.
You might not think it natural or ergonomic, but by golly, they do it
all the time...I still have an aversion to finger smudges on the screen!
Moderator 
