err… problem with a tablet is that there’s only a single screen. so, even if the tablet’s memory was big enough for TBs of info, what you can actually see at a given moment is something else entirely.
And I’m used to using many sources at once so unless I use 3, 4, 5 or more comps, and tablets at the same time (which is kinda silly, eh 😉 ), hardcopy + some kind of computer support is still more cost and space effective to me. 🙂