So I was in a room built from cinder blocks today and went to put my 17" mbp in my laptop bag today and I wasn't really paying attention and banged it against a corner of cinder blocks jutting out of the wall for no apparent reason. Needless to say I was instantly upset at myself for not paying attention and was afraid to look down at my mbp. When I did what I saw shocked me. A piece of cinder block the size of a dime was compacted against the edge of the aluminum casing and I just pulled it off it didn't even leave a scratch! No I don't work for Apple and this is not an April Fools Joke, if you need to know if the new unibody can withstand a few hard knocks here is your proof.