I used an Alphasmart Neo for two years. For me, its limitations are big benefits. It doesn't have a zillion other apps or an internet connection that I can use to distract myself. Its screen is so small that editing, while possible, is awkward, so instead of revising my first paragraph to death I keep writing.
And the Neo fits nicely on an airplane tray table, which is a big bonus when I'm traveling a lot. And its keyboard feels better than most notebook computers'.
But then things changed. Earlier this year my wife bought me a Treo smartphone for my birthday (because I begged her to). This unfortunately means that even when I'm away from my office with my Neo, I now have easy access to distractions. Harumph.
Given that I can now easily distract myself if I want to, the Neo isn't going to save me from my bad habits. So I'm going to have to do that myself. And if I can do that, well...
I bought a MacBook Air, which takes up the same desk space as the Neo, and it offers a richer set of writing tools.
So I think my Neo now goes on the shelf.
Dale