I actually removed a part of my answer which addressed this very point

I can see netbooks, or maybe even the 11" MBA having touchscreen and a trackpad, but I personally sit far enough away from my 13" MBP that I can't touch the whole screen without having to lift my arm. Besides, desktop operating systems can't be (at least I can't envision it) made into a touch interface without becoming either ridiculously hard to master, or becoming a very Toys R Us kind of interface - like iOS is.
Except people having worked with touch screens, knowing just how useless they are, unless they're going to use it for app development... The way things are today, I wouldn't even pay 50 dollars extra for a touch screen. Hell, I wouldn't even pay the cost for the hardware and installation.
Laptops with touch screen is either for people who for one reason or another needs it (I know a professor in maths that uses touch screen with a stylus during lectures), or who uses it as a gimmick (running Ubuntu Netbook Edition or Windows 8 for instance) - not for the general public.
If it's an addition, go for it, I couldn't care less because I wouldn't use it. But in a comparison, trackpad/mouse win over touchscreen any day.
If you're sitting close enough to your laptop, be it 13" or 17", that you could use the touchscreen instead of a trackpad without wearing your arm out, you're sitting closer to your laptop than most people I know.
I am using keyboard shortcuts, and I can use my trackpad without really having to move my arms. In order for me to touch my screen, it's a lot bigger gesture.
I don't even know what to say...
Well from what i understand mac os x is moving closer to an ios type operating system, is it not?
Also, your argument against the touch screen is based on and all about the tech you have seen so far incorporated in the PC world of laptops (which does suck and is dumb). Not what Apple can do to revolutionize it. Which is also a major part of my argument, that Apple can take something like that, that isnt working, and make it work, AMAZINGLY WELL.
So basically what im saying is yes you win the argument, because your argument is based on the idea that apple (and software developers) wouldnt alter anything else when incorporating a touchscreen on a laptop. So therefore, yes, i agree, it would be dumb.
Its pretty obvious that apple wouldnt just pop on a touchscreen and be like, see, its better.
We are seeing the move to merge ios and mac osx if not fully, pretty close.
And lets face it, even if apples touchscreen on the iphone and ipad work amazingly well if not perfect, and perfectly with the os, its still a gimmick even then, and gimmicks sell things, and this ones useful.
Im still having a really hard time understanding your argument against the touchscreen. i guess i just dont understand how much and what you are doing with your track pad. the only thing i do is click to select things....and like i said before, i do this 16 hours a day. i just cant see how having to stop, wipe your finger around on the trackpad, find the pointer, move it to where you want to select, then tap, is better than just........tap. i would think just reaching up for a second to tap (with out bending or twisting the wrist) vs. bring my hand/wrist back or twisting it to reach the trackpad than doing the other movements to tap is better/more efficient especially for my carpel tunnel. which every laptop user has
I would like to see some one address that whole issue in detail....
of course you have to understand i am also considering that to employ the touch screen effectively a more ios like os (which is coming) and alterations to third party software as well, along with maybe some kind of redesign of the case would make it effective than the trackpad.
Which brings me back to my first post of the fact that, i dont see how the macbook pro can go anywere else (because it is so perfect right now), and that something like the touchscreen could possible be the only other way to go for anything to be considered a "redesign"which is what this thread is about or "revolutionary" which is what apple is about.
im not simply just into this idea because its "cool" or would be "cool." i really believe it would make my experience and work more efficient in photo, music, and video editing software as well as all the other average/normal activities.
i mean seriously,
lightroom changing exposure setting:
wheres the pointer, swipe, there it is, drag, point, tap, hold drag.
or
tap, drag
or
internet browsing tab change:
wheres the pointer, swipe, there it is, drag, point, tap.
or
tap
or
open application
wheres the pointer, swipe, there it is, drag, tap
or
tap
this is tiring to you? really?
i want to see someone address issues like that, when arguing that it would be tiring, dumb, or efficient.
and i appreciate you sticking with me and trying to help me understand.