I AM SOOOOOOOO MAD!!!! Do not buy plastic macbooks. Every other product is fine, but not the plastic macbook. I like apple, BUT, Apple will not stand by their product when it develops hairline cracks from normal usage. They consider it cosmetic and will not replace it. I have had these for a few months and finally had the time to make an appt to take it into their stupid bar. They have replaced others before but have deemed not to cover it anymore. AppleCare says the same thing. It is cosmetic damage, the hardware is working so they will not cover it. This is according to apple store personnel at the Brea, California location as of Sept 1, 2009. I have these cracks from normal usage. Always kept in a neoprene case and NEVER DROPPED. Bought in Dec 2007 and AppleCare does not expire until Dec 2010. It makes me more mad to read forum threads where people have SIMILAR problems and get new macbooks.. or easily get replacement casings. There's NO SERVICE at the so called genius bar. I'm only speaking about the Brea location and this specific event. I've had good service in Pasadena and London regarding my other mac products. Anyone that works at apple want to chime in? Steve Jobs, are you there? Anyone work in tech in the back at the apple store? Any authorized repair agents on this forum?