Does Apple allow for Applecare support on a new OS such as Leopard when it is released and if so can one upgrade like when you buy hardware for three years for just the operating system software. I just purchased a MBP last week which is scheduled to be delivered next week. It will come with Tiger OS 10.4 installed. If I upgrade to Leopard in a month or two, will the Applecare extended warranty I purchased be applied to the new operating system on the MBP purchased before Leopard was announced. I know from experience that if I call Apple under warranty with a OS software problem in software they installed, they were very helpful in helping me correct the problem. but this is the first time I will have switched to a new OS after the hardware purchase. Theoretically, Leopard is still a variant of OS X which is an Apple product, but since it is not an update but an upgrade is is still covered under the MBP extended warranty for the next three years from date of MBP purchase?