I hope there wasn't a faulty batch, because I'm pretty sure I got mine around the same time your got yours Karen. I'm getting a little worried. I am extremely careful with my PB360, if I'm not reading it the cover is always on. I pick it up and put it down very gently. I don't use it outside the house, although being portable that shouldn't be a problem.
Just how fragile are these devices? It never occured to me that a crack could just appear in the glass and ruin the reader.