> Stupid question by an ignorant prosumer: are you serious? You can have only > one > instance of something opened in Mac OS?
Oops, I should clarify. This is only the case with graphical programs, which live within a .app directory, containing the actual executable and the resources for the program. Unix utilities on the other hand still work as normal, i.e. you can run cat or less just like you would in Linux, within a terminal emulator. I only meant this about GUI programs, which my port of st is one of.
