Genealogy Program/Hand-Held Computer

[Diana & Graham Stevens]

Can anyone suggest a hand-held computer which has a genealogy program 
into which I could load my family file, please?

I have a G5 Quicksilver running OS 10.3.7 and Reunion 8.
Of course I would like to keep a few other things in it as well. I 
use Palm Desktop for my calendar but have never owned one. After 
owning a Newton a Palm seemed a terrible come-down, but now maybe one 
would be useful.

Diana