Personally, I think vi is not very user friendly or intuitive, might I suggest \"nano\" its the standard text editor for Gentoo linux.
the binary is available from
http://pathwayjr.com:8001/jpavel/Software/Zaurus/nanoits not an .ipk just a bianry, you can download it and copy it to /usr/bin
you will also need libncurses.so.5
to get that... I personally pulled mine off the .ipk feed but this link *should* work
http://nelfer.freeshell.org/zaurus/libncurses5_arm.ipkthat will install libncurses.so in /usr/lib, you will have to \"su\" then chdir to /usr/lib and
ln -s libncurses.so libncurses.so.5
now you can invoke nano with the command \"nano\" and preferably \"nano -w\" to avoid wrapping long lines, important in some text files.
when you\'ve finished editing (just like any regular editor) you can fn-x to exit and it will prompt if you want to save or not, very simple, I like it.