I love my old grayscale screens and the battery life that comes with and I snagged one of these for 40aud with no battery cover, what neat things can I do with this thing and what's the max CF card size it'll take happily?
If you have a sync cable with it, CE 1.x devices make convenient serial terminals with Pocket Tera Term. I think vxHpc might run on CE 1.x as well, though I've never tried it.
I just bought a C140, very nice unit. It is a rebadged Casio Cassiopeia A-11 though. Nothing wrong with that though because I used to have a Casio Cassiopeia A-11 till 2001. I have a Casio Cassiopeia that it's touchscreen does not work. The C140 came with CE 1.0 and the A-11 had CE 2.0 in it. So I swapped modules and now my C140 has Windows CE 2.0 in it.
With PocketDOS you can enjoy a giant wealth of cool little programs, not only for nostalgic but also for pratical uses.
A CE-DOS machine just taking AA is so cool.