I still feel like there is more to these stories than what we are being told. Here is a report int he forums that one of the phones was in a baggy set of jeans and in a case and the phone bent and the screen seperated all from a simple soft bump into someone.
Something just doesn't sound right, especially where there are tons of stress tests on YouTube like the one below. Yes the back plate bent here but it took a liquid nitrogen bath and a sledgehammer and even then it fared better than expected. Are the phones be dig? Clearly. However, I think there is more to it that what people are posting. Maybe they don't recall what caused that to happen exactly but I bet there is more to it that is stressing the phone.
http://youtu.be/0UjmqErytJc