3 semi-stuck green pixels, none of them major enough to warrant a return (in my opinion). All three are very close to the edge of the screen, and only show up when all nearby pixels are black (nearby meaning within like an inch, I can't even see them on the home screen even though they all fall in the black areas of the screen.) I can basically only see them when watching a video that's displaying a very dark scene, and even then I almost have to look for them to notice them. Shortly after getting the iPhone I noticed a very subtle red stuck pixel, though it appears that either it has since corrected itself, or I just can't find it anymore.