[joeld42]

Casey switched to a modal editor for the handmade hero livestream (because of RSI issues). It's not vim, but it's similar since it's modal. He's only just switched about a month ago, but he's already pretty quick, though not as fast as he was with emacs. You can compare old episodes to current ones to see someone editing with a vim-like editor and emacs one.

I've personally gone through phases of using vim, emacs, notepad++, Visual Studio, and (currently) SublimeText and xcode. My opinion is that the editor is never the "bottleneck" with programming speed, so just use whatever is the most comfortable for you. One nice thing about vi/vim is that some variant of it is installed almost everywhere so you're always likely to have a usable editor available if you learn it.