That video gets off to a very slow start but by minute 10 or so some very interesting features are on display. Some that stuck out were using filenames plus regexes or line numbers to create links in text files, a text file that is also a shell session, things that have been done in vi/emacs but this editor is mouse-centric so it looks very different.
I would add to your list:
- acme is complemented by the plumber, which acts according to user defined rules when receiving a text selection (and context)
- anything in acme is text, which is editable. Menu bar, buffers, shell window... the editable dumb terminal is great.
- acme features a 9p fs "api" to access its state, and modify it, with any program. Go is first class citizen.
Acme cannot be used though ssh in a terminal nor on a iPad though :)