Hi there, So, my sister just bought a blackbook from apple.com on Saturday-- it is due to be shipped on Wednesday. Now that the rumors of an imminent upgrade are louder than ever, what is the process she would go through if a new line is rolled out? Is the limit for returns in this case 14 days? Must the computer be unopened/ unused to get a replacement? Is it even possible to get such a replacement? Thanks. I looked at apple's legal stuff but could not find anything about what state the product must be in to qualify for a return or possible replacement.