I've been noticing that more and more posters here are noting that there was some sort of black dusty substance stuck to the corners of their recently shipped MBPs. I'd like to get a sense for who is experiencing this issue, and when their laptop was shipped- the more information there is, the more likely it is that Apple, if contacted, will be able to provide an explanation. Not only does this substance detract from the appearance of the new Macbooks (especially considering the price!), I'm a little concerned as to the safety of the substance. The factory producing the laptops is located in China, which has a notorious reputation for using some pretty nasty stuff in their products. Of course, this may be completely overkill and silly- but still, knowledge is power, and Apple should be alerted to the situation.