This seems to be one of those arguments where we programmers tend to optimize for the wrong problem. Sure, we may be able to input more text more comfortably with the merits of one text editor over another, but really, I think most of the time spent during programming is reading APIs, headers, other code and most importantly thinking. Typing is hardly the bottleneck.
Except when it is... If you can edit fluently and quickly, _then_ coding is more of a nonissue, you're free to try things out, you can find and fix an error and Alt-Tab without blinking, you can harness this kind of physical flow of noninterrupted work, etc. I've worked alongside programmers for whom typing and editing were indeed quite the bottlenecks. Of course, any programming editor is probably good enough if you learn it.
