I just don't understand this dichotomy between battery life and multitasking.  It would be perfectly reasonable to offer a <i>choice</i>, 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?<p>Why does Apple assume their users are idiots that can't be trusted to make an informed choice?