As you say, there are great use cases for just having a simple keyboard shortcut. Ron Minnich made "smacme", a modified acme with the basic Emacs C-f, C-b, C-n, C-p bindings in; you can find it in the sources directory IIRC, but in any case it's really a pretty simple hack.
I've only found a reference in a 2006 post from Ron. Is it a modification to acme which would need to be ported to plan9port or is it already part of plan9port's acme or is it maybe just a set of scripts to source on acme startup?
