I've been using vim on iOS through Prompt[1] for a while and it's been perfectly usable without an external keyboard (I'm using an iPhone anyway). If your devic

I've been using vim on iOS through Prompt[1] for a while and it's been perfectly usable without an external keyboard (I'm using an iPhone anyway). If your device is jailbroken you can use SSH to localhost and hack away. Note: I have not yet tried tmux over Prompt so I can't say whether it's a good idea or not. Nor have I tried emacs. [1] https://itunes.apple.com/us/app/prompt/id421507115?mt=8 https://itunes.apple.com/us/app/prompt/id421507115?mt=8