I finally broke down and bougth a PDA. I picked a low end Visor (Visor Deluxe), just to see if I'll use it. So far I entered most of my addresses into it, then I signed up for AvantGo, so I can read some Web pages off line. I also added several games to the little machine.
Then it hit me! This thing is a computer, so it can be programmed!! Poking around I found a Palm based Scheme interpreter called LispMe and I started to play with it.
As I know that Santa is bringing me Scheme book, I'll be able to read the book on the train and then try out some programs right away. Cool!