I started a thread over at Ars Technica to see what the Mac geek community thinks about this, because I'm curious now (and would like to see the OP's Mac fixed, of course)
http://episteme.arstechnica.com/eve/...1#639005878931
It's a good question, because there are a number of issues that affect other machines (eg. bad nVidia GPU's on last-gen Macbook Pro's), and I wonder how Apple handles these situations.