I've had the Nexus for 4 days. On three occasions that I noticed, the SOME sound functions from the external speaker stop. Nothing happens to provoke it, just pick it up and notice no sound:
No audio from music or videos
No keyboard, dial pad sounds
No audio phone call (Can't hear other end of conversation).
Ringtone works OK
Notification sounds OK
All sound OK using plugin headset (didn't try BT headset)
The first time it happened and drove to VZW store. By the time I got there, it self corrected. Before that I had turned phone off, but forgot about removing the battery.
Another time I noticed it but didn't have time to deal with it. Later it was working. Final time, same thing. I had set it aside for several hours and when I got back to it, working.
Obviously, the bad thing to happened that I haven't experienced yet is to take a call and find I can't hear anyone.
I took it into VZW a second time today. Rep found no other instances of this. Just trying to see if anyone else has experienced this.