I have a 2,1 White MacBook from 2007. Early last year, 2009, my casing cracked on the palmrest. I know this is an extremely common problem and the repairs are fully covered by Apple, regardless of warranty. My case also has a few of the hairline cracks near the exhaust vent and hinge. I have yet to have these problems repaired. At first I just didn't feel like going to an Apple store. Now that the MacBook casing has changed to the unibody design, I wonder if the future repair will be affected for better or worse. I have AppleCare for four years, until 2011. Does anyone know how Apple is fixing these casing problems in 2010 now that the unibody MacBooks are out? I expect it is very likely that Apple has plenty of the old hardware on hand, but I would like to think I could get a very nice uMB upgrade for free, even if I need to wait longer to get it.