I think that the iPad will be exactly like the iPhone and Apple 2:
A major transitive device for a new technology. It will be a game-changer, not because of itself but what it adds to the game.
I am very excited for a tablet that would allow me to write, run, and do things on the run - taking notes, e-mailing, or preparing presentations on the run. Having a tablet device on an airplane would be a godsend.
However, I don't think that the iPad will be the device that really makes the market what it is, much in the same way that the iPhone doesn't have an insanely high marketshare - its still 3rd place in the smartphone market. However, someone else will do it.
Having just seen the Courier video, I really think thats the way it should go. I was thinking 'it'd be great if they made a folding touchscreen notebook' and wham - there it is.
Back from the dead, I'm afraid.