*watch in 1080p*
I just noticed this today after leaving the screen static for about 8 mins while using a second screen. I bought my rMBP a few weeks after it was announced. Notice I zoomed in and out of my after effects canvas and you see that the text is actually stuck on the screen. I know a few people are experiencing this, just thought I would show more proof. Heard that it's something to do with the Toshiba displays, people with the Samsung manufactured displays seem to not be getting any issues with ghosting. Going to take it in for a replacement.