I feel your pain. Your post touches on a topic close to my heart; not the media stronghold companies like Apple have (I’m not an Apple user so I can’t really comment) but what does drive me nuts are the social silos (these walled gardens you mentioned) that are popping up all over the place. And what’s scary is that most people aren’t even aware how they are being manipulated, with companies are using all sorts of really nasty tricks to achieve this. My favorite being Facebook’s recent trick in forcing you to accept their new facebook email address (that you never asked for) and then deleting your non­-Facebook addresses in the process (unbelievably invasive).