So just like everyone else, I am anxiously waiting for my macbook air!!! Anyway my question is : Do I need to still calibrate the battery? I have always done so with almost every and any electronic device that has a rechargeable based battery ranging from cell phones to laptops. And from what I always understood was that is was crucial before, but now not so much. So could anybody tell me if it is still a good idea to do so and why or why not?