I just bought an iBook about a month ago. I know it comes with a year of free AppleCare and 90 days free phone service, but you have the opportunity to extend the year to 3 years if you buy the plan. Sorry if this question sounds incredibly stupid: If I buy AppleCare after the 90 days free phone service expires, but before the year is up, do I get the phone service again? Or if I don't buy it within the 90 day time frame, is the phone service gone for good?