@eden get DroidVim and a git client (pick your favorite) on your phone. you'll learn vim (at least the basics) in a month. print out a visual cheatsheet for it.

the same could be done for emacs, probably, but I personally can't stand the pinky usage.

(only mildly annoying thing with vim is when you start typing but you're not in insert mode. it's usually not a big deal tho so it doesn't bother me much.)