vi released for the 128, 64, +4, Vic20, Pet, Atari & Apple II

[anthony]

Wasn't there some connection from the Amiga to VI (developed early on Amiga and ported to xnix)?  Maybe I'm thinking of Worker.

yes vim was first released on the amiga:

http://en.wikipedia.org/wiki/Vim_(text_editor)#Release_history

it's probably safe to say its the most widely used vi clone