I was looking at the sharing-bookmarking menu of Safari on my iPhone, clearly Facebook is going to be in here at some stage, perhaps one other. But the problem is that there is no room left. So, either Apple won’t expand the feature, which I doubt, or they’d have to redesign it, which I’m inclined to think. My guess would then be, away with the drop down menu concept, a new slider (up/down, left/right) would be much nicer and scale better. Would that be too radical?