I used VIP then Viper regularly in the late '80s and throughout most of the '90s, until Vim got good enough to be my primary editor. I haven't used Viper since Emacs 19 and I'm trying Vimpulse for the first time.
Is there an equivalent to Vim's 'hidden' option? Every time I use C-^ to switch to the alternate buffer, I'm getting an annoying message about "Buffer foo is modified. Discard changes? (yes or no)". If I switch with :b or "C-x b", I don't get that message.
Vimpulse (or Viper?) doesn't seem to work terribly well with Aquamacs 2.1. They work a lot better with Emacs 23.2 from
http://emacsformacosx.com/. The most obvious thing being that I have to explicitly do M-x viper-mode, despite having (require 'vimpulse) in my ~/.emacs.d/init.el.