The new Retina iMac offers the very best display one could hope for in a Mac, hands down. Brilliant colours and excellent resolution, I'm blown away by the clarity with which I experience OS/X now ... I do have one hot pixel though - a red one, very close to the center. It's only visible on dark background and only if you move close enough and where to look at, so probably no good reason for returning the entire machine. Yet, it would have been nice to receive an immaculate diplay .... Question to the RiMac owners: Did you observe any dead, hot / stuck pixels on your display ??