I used to be a big f-f-m fan, but it doesn't make sense in the Mac UI at all, due to the menubar (as he notes). So I got over it. But the big missing feature

I used to be a big f-f-m fan, but it doesn't make sense in the Mac UI at all, due to the menubar (as he notes). So I got over it. But the big missing feature that doesn't contradict the UI at all is the ability to lower a window. It would solve his "I want to type 'make' over there but then end up with the terminal window on the bottom", too.