My MBP arrived today, and fortunately there's no whine, no flickering backlight or any other commonly reported problem. There is, however a stuck key: I have to hit the Z key pretty hard, or else no z will be typed. The left-hand command key seems to have the same problem, but to a much lesser extent.
It looks like a few people have found similar things. At least one person had many bad keys, and re-seated the keyboard connection to fix it. This is only one bad key, though, so it doesn't sound like a connector to me.
Have others noticed similar issues? What did you do about it? Compressed air didn't help, and I really don't want to send it in, after waiting so long for it...
Thanks!