Originally Posted by PatNY
Adding an SD card is different as it raises the cost and size of an item. And it discourages people from using a money-making cloud-based resource.
Home page widgets have no such considerations. There is no valid reason not to put them in, so I suspect someone else already has patented them for mobile devices. That's why Apple has yet to add them
It is the same reason for SD cards and widgets, it adds complexity.
Apple don't like complexity, they like simplicity, even if that removes functionality.