Skype? You mean like this: http://www.skype.com/download/skype/macosx/ http://www.skype.com/download/skype/macosx/ In general also mac applications don't need

Skype? You mean like this: http://www.skype.com/download/skype/macosx/ http://www.skype.com/download/skype/macosx/ In general also mac applications don't need a package manager. Download, drag application to Applications directory, done. If you want to get rid of it, delete it from there, it's gone. Updating, http://sparkle.andymatuschak.org/ http://sparkle.andymatuschak.org/ is used in the vast majority of non-Apple software these days. Focus/raise model yeah, there's no way to change it that I know of, and personally my biggest annoyance with OS X is the inability to change window management in general. The headphone jack thing is almost certainly a problem with hardware, it works just fine on every Mac I own/have used. You can invert the display to use white-on-black with Ctrl-Alt-Command-8, or via System Preferences -> Universal Access, though that's probably not exactly what you're looking for.