Some of the very reasons you specify are exact reasons I didn't pick one up. i.e. the usb / printing issue, office etc . .
I'm not sure I understand this sentence. You chose
not to buy a MBA
because it has USB ports, MS Office and printing?
I love the typing. I type just as quickly on an ipad. I can see how some might not like it at first though. I personally would love to be able to use it for graphic design but it's kinda failing in that department right now. . sigh. Soon though I think the ipad will hit directly on all of these things and do them well. If the typing is an issue I understand, but besides that, I think in the near future we will see seriously upgraded ipads.
Unless next generation iPads can read my mind, there is no way the on screen keyboard can be fast/reliable enough.
It's impossible to equal the speed of being able to select with the mouse a portion of text while using keyboard shortcuts with the other hand. It's impossible to write something that requires both letters and digits (e.g. excel) fast enough on an iPad when you constantly have to switch between keyboard modes.
In raw letters-only typing, such as taking notes in a classroom, tweeting, facebooking or posting on a forum, I can definitely imagine customers being satisfied with their iPad typing speed, but again, for any professional use, there is just no comparison.
And that's putting aside such issues as lost screen space, or unhealthy neck and/or wrist position. It's only a matter of time before scientific studies demonstrate how dangerous it is to type for any length of time on an iPad, and why it should be avoided at all cost.
It's not a matter of getting used to it (unless human anatomy significantly changes in the next few years). Any typing with your hands forming anything else than a 170 to 190 angle with your forearms is damaging (situation A). Any typing with your head forming anything else than a 160 to 200 angle with your backbone is damaging (situation B).
Typing using the Apple iPad case (or any other inclined support) puts you in situation A. Typing with the iPad flat puts you in situation B.