It does, Vim is available through pkg on 9Front and works really well. The only thing I would say is that `:Ex` works a little funky (although generally quite well).

Furthermore there exists "A Posix Emulator" (ape) that is serviceable.

ACME FTW. :)

A mouse-oriented editor? That's about the opposite of what I'd want.

Mouse oriented editors combined with keyboard shortcuts, is like playing FPS with a PC against console gamers.

Or maybe it just shows my bias for IDEs. :)

I think it is worth noting that acme, the editor, borrows heavily from N. Wirth's Oberon, the OS.