I just don't understand this dichotomy between battery life and multitasking. It would be perfectly reasonable to offer a choice, wouldn't it? Apple could say: if you want the full 10 hours of battery life, don't multitask. Otherwise, accept the battery life tradeoff and multitask to your heart's content. I can then choose to use the device however I want to. Isn't this how battery life estimates with laptops work?

Why does Apple assume their users are idiots that can't be trusted to make an informed choice?