I asked a similar question like this regarding the MacBook Pro. When transporting my MacBook around the house, I sometimes put my iPad and external HDD on it and use it as a sort of tray, and I asked whether I can do that or if they're 'too heavy' and could press down on the screen. Apparently it can't. I'm now wondering about the iPad, because, when my iPad is on my office desk, in a case, I often leave my HDD resting on top of the iPad. Again, is that okay for me to do that, or could that press down on the screen and cause the device to not function correctly?