As morbid as this sounds, he probably died yesterday morning - the close timing to the iPhone event suggests they held off on announcing his death so as not to overshadow the product announcement.

I have seen a few patients with end-stage liver disease during their last days and I have to say they don't recognize their surroundings nor are they capable of reflecting on their own state. And this is a good thing probably. At times like these, it helps me to remember that lives are not defined by their endings, they are defined by how they have been lived.