"I am a writer with carpal tunnel syndrome. The PDA is the perfect cure for me. I can literarlly type my novel on it. It isn't perfect, but I can use the "pen" and write on the screen in longhand, and it is transfered to typing charcters (the letter forms take a while to get used to, but it's very useful, once you get the hang of it). I also speak & write in both spanish and french, and accents are easier with this even than with my pc.
Also, there are simple little games (and a few you can download for free), calander, . . .it's very useful, and not horrificially expensive.
I will say that The screen calibration isn't all right, and it doesn't always translate well (from stylus to characters on screen) but in it's defence, I use it CONSTANTLY, probably if you use it only say 30 min a day, and while sitting appropriately at a desk, it will keep working better.
But even with it's less than perfect translations, it's terribly useful."