I found a spot underneath the top power button today, but only when I hold it at that extreme angle you see in everyone else's pics. Checked my iPad 2 and it has no light leak. Hubby's iPad 2 has mild light leak, but he's had it a year and never noticed it until today.
As long as I can watch a movie (letterbox) in a dark room and not see light coming out of that corner, I'll keep this iPad. It has no dead pixels and good, even brightness, so I'd rather have that than a corner of light that I don't notice except at sharp viewing angles I won't use.