If you like Emacs, but like me hate the default key bindings, try ErgoEmacs. It is a set of Emacs key bindings which are not so painful.

I'm blind, and I would really like an affordable handheld which was
accessible. I think the Sharp Zaurus might be the answer. It has a
keyboard, sound, and a processor capable of speech synthesis. I intend
to get one and write software for it which speaks. I will of course
make the software available to anyone else. If anyone is interested,
contact rob _@_ mur.org.uk.