Can't hurt to ask. We paid $500+ for these things. I believe it's reasonable to want our tablets to be free of hardware defects. Heck, I've got a replacement coming my way simply because of a tiny piece of lint under the glass. Google processed my RMA with no fight.
Regarding your specific issue, I don't have it. But oddly enough, I came across someone (I think on XDA) who described the same problem. Was that you? If not, your issue isn't unique to your tablet.
EDIT: I was right. Read about the back cover issue on XDA. The guy even made a video showing his issue.
No, that wasn't me. Unfortunately, flexing seems to be a common problem with the Nexus 10.
Anyways, I will have to send this replacement tablet back now, because it won't even turn on. Yesterday, I fully charged it while debating whether to return it or not, and after it got done charging I turned it off (shut it down completely) and went to bed. I woke up this morning and picked it up to turn it on and play around on it a little and for some reason, the area around the camera on the back of the tablet was warm... like it had been in use (my Galaxy Nexus gets warm like that after some use, but not while turned off). The tablet is dead and I haven't even bothered charging the damn thing again.
Maybe I should have kept the tablet with the bad power button, at least it held a charge for a couple of days. It was really hard to turn on and off, but I could use it. This is getting ridiculous...
Edited by cspctec, 07 January 2013 - 11:26 AM.