There's nothing "cool" about carrying a system that's just as functional as two different laptops. (A mac and a PC.) Trust me, it's about function because I would have much rather bought a $500 laptop instead of a $1200 laptop if it would do the same thing. I didn't really mean the "cool" statement to be a cheap shot at you, I just have serious doubts about the true usefulness of a tablet, especially one running Android 1.5.
But you're right...if you don't support macs or businesses, I guess I can see how the tablet would work.
As far as pulling files from their system, I've had instances where the machine is dead and they just need a couple of files before I take it away to recycle it. I'd gladly plug the drive in and burn those to CD before leaving.
As far as the utility closet, most businesses I go to are set up that way, or similar and an ethernet port is extremely useful.
And the applications that you "may" need to install, again, I guess that's a business thing. I have a few applications that clients use that I've installed on my system, so that I can do administration to their custom apps or so I can see what they're calling me about at 9pm. There's not a single thing a home user would have where this would come into play, so it wouldn't apply in your case.
Anyway, I'm not trying to start a fight or argue. If it works for you, fantastic. I would be interested in seeing just how much that can do, though.