Ok, so my MB purchased in April 2007 started turning black on the palm rests. So one day, i moved my palm back and forth without noticing, and felt something. Looks down, and saw this brown/black stuff coming out! I rubbed my fingers on the noticably darker spots and they turned lighter, and i saw some more brown stuff! It was pretty weird, having dust just pop out of my macbook. I wish i had a MBP, have any of you experienced this problem? Where can i get one of the Magic Erasers or anything that cleans out the darkness in my palm rests?