I noticed that mine is bad(noticeable) only between 30-50% brightness. Full up, it's gone(and here, I thought it would be worse!).
I'm not taking mine back for a while, if at all. Depends on how long term it bothers me. I have a year, I'll wait. Not a biggie.
Try different brightness settings. See what happens.
i feel the same way. i only noticed it when i did the thing with blocking the vidoeo camera. it doesn't affect the normal opoerations of the device (to me) and that's what's most important. i also have applecare on the thing so i've got 2 years that if it does begin to creep into the actual usability of the device then i'll have them replace it.
other than that, this thing isn't leaving my hands!