This is an issue I'm starting to notice on my 10 month old Macbook Pro 13 inch. There's this "white stain" on both palm rests of the MBP. Here's some sample pictures: http://img441.imageshack.us/img441/1350/sample1i.jpg http://img708.imageshack.us/img708/6863/sample2z.jpg It cannot be cleaned off by wiping it, water, rubbing alcohol, etc. Note that I clean my MBP daily, even hourly, I always wash my hands and dry them before using this laptop, therefore, I know it's not a matter of sanitation. Does anyone else experience this issue? If you do, why is this happening? Thanks!