Left playbook on my truck box and drove away from work. The next day someone turned it into my work(yes I looked everywhere and drove for hrs looking for it). The case clearly had tire marks on it, the ear buds inside of case looked like cookie crumbs, they were destroyed, but to my disbelief it fired up and hasn't missed a beat. Only a couple scratches on the bezel, as I also had a screen protector on it.
Loving this thing, don't leave home without it.
Now bring on BB10