But why optimize for the lowest common denominator? I spend 95% of my time coding on the same laptop, in the same languages. I was a longtime emacs user but there's just no way I would write Java or Cocoa code without the support of an actual IDE now. The benefits of a tool that really understands the structure of my code instead of the surface syntax are just too substantial. If I have to use a generic editor for some new random syntax it's not that painful.

Besides, the basic cursor movement keys are standard across all text-editing widgets, at least on a Mac, and those are the most crucial to have in common. Using a "dumb" editor like Vim or Emacs seems like a premature optimization to me.