I have only about 20 seconds left. I have one more question for Apple.
On iOS, when you switch between applications, one application suspends and the next one opens. When you come back to the original application, if it's been more than a few seconds, it will reload the data. Is that not providing ample tracking opportunity to any website you're on, by saying that this is the usage of the device? I find it strange to have to do that, instead of storing the content that you're actually using.