I'll answer my own question from what I have learned from other sites.
The iPad is not quite ready yet for heavy duty downloading of large image files while traveling.
Although you can attach a USB external drive, it is limited to 32GB capacity - too small to be practical when on a photo trip. To meet my 3-copy requirement for my images would require way too many external drives.
I Also understand that downloading files to the iPad is much slower than downloading to a notebook computer.
So, all things considered, it looks like we still need to lug around our heavy old notebooks for the time being.
MacBook Air anyone???
William (Bill) Plunkett
NANPA Board Member