Although it does me little good at the moment since HN's text area is a mere 6 lines, I'm posting this from Opera's fullscreen mode which I use quite frequently

Although it does me little good at the moment since HN's text area is a mere 6 lines, I'm posting this from Opera's fullscreen mode which I use quite frequently. While few applications on any platform seem to support this kind of true fullscreen mode, I use "almost fullscreen" windows all the time: on OSX the green orb in the upper left corner of every window acts as a toggle which maximizes the window or returns it to its original size. I say "almost fullscreen" because the omnipresent menu bar and window decorations remain visible when you work this way.