I got my GNex yesterday morning. The call quality was terrible, to the point that it got in the way of a coherent. I went and exchanged it out for a new one, because I love the phone. I'm making calls today on my 2nd GNex having the same problem. Is this more common than just me? The calls cut out periodically and there is a constantly crackling noise. Happened with both phones and it seems to be the earpiece itself and not a software problem.