[From Michael] Hi, I'm an Apple Newton user, not for any weird fetish reason, but simply
because it's the most organized pad of paper I've ever used. With the
addition of MoreInfo, every major piece of information (note, name,
task, event, etc.) can be linked to every other major piece of
information. Rather than tagging, you're actually building a semantic
network of sorts. With only a few taps, you get at information that
otherwise gets lost in the sea of inflowing ideas.
The other thing about the Newton is that the gesture driven interface still hasn't been beat. I don't care about the handwriting as much as some (I learned graffiti just fine, back in the day of also using a Palm), but the ease and sensibility of scratching out, highlight-tap- drag, and "storing" my clipboards on the edge of the screen is just so sensible that I can't believe that others (including the new Apple) haven't done it again.
So, that's how I use my handheld device. I've also got an Alphasmart Dana that's my portable writing solution, and an old Nokia S60 series 1 phone that I use with ReadM to read text files on the go.