It is already there, lurking, in iOS 5(back to 2, friends say) See http://t.co/EkqWISbS http://t.co/EkqWISbS for an example, appears as a bug when you try and

It is already there, lurking, in iOS 5(back to 2, friends say) See http://t.co/EkqWISbS http://t.co/EkqWISbS for an example, appears as a bug when you try and upgrade an app you've deleted -- but it shows the capability does exist. I agree they won't enable it until they have a reason, the current situation is simple to manage from all angles.