I dunno—I see the appeal of what you say, but, on the other hand, the closer the OS comes to locking in different things that an app might want to do, the more

I dunno—I see the appeal of what you say, but, on the other hand, the closer the OS comes to locking in different things that an app might want to do, the more we risk the iOS set-up where you can use any browser you want, as long as it's WebKit. That is, one unified paradigm is great, as long as you like that paradigm! I guess one can image a "skinnable" OS, where the OS enforces, say, one approach to window management on all apps, but there are options for what the One True Window Management strategy is. I'm sure I'm describing something in Linux, but I'm a Mac user and so not used to such freedom.