I still think it would've been more impressive to release the iPad first and then follow it up with the touch and iPhone. "a pocket-sized iPad...AMAZING!"
As far as finding a business use for the iPad, that strikes a nerve with me. I hate when companies try and justify technology instead of starting with a business need and then finding the appropriate technology to solve that need.
Maybe I misunderstand what you wrote but sometimes technology finds uses that someone didn't intend. We have people come inhouse for product demo's.
Most of our applications, not all though, can be configured through a browser interface.
Prior to the iPad, everyone would watch the projector while someone manned the keyboard and mouse, blah. With the iPad, you can pass it around and allow the user to experience the interface first hand.
Also, the iPad would be awesome as you could make changes to configuration as you walked around.
Imagine you are setting up a call center with 250 users, normally you are in the data closet typing away. This is the normal way of doing things and there is nothing wrong with that. Get the bulk of the programming out of the way and then break out the iPad and go walk the floor with the ACD manager and make all your MAC's while directly interfacing with the manager and the agent.
That is going to be pretty sweet. Prospective customers like shiny and new and throw in ease of use...