With an extra 10+ hours battery life. With every core (CPU+GPU) at 100%. Heh, sorry couldn't resist. We all know that's totally unrealistic. What I really want

With an extra 10+ hours battery life. With every core (CPU+GPU) at 100%. Heh, sorry couldn't resist. We all know that's totally unrealistic. What I really want is a changeable battery, whoops there I go again!