I don't believe it...
I seriously doubt this guy is privileged to what apple is doing in 2013. Most devs I work with are on 15" MBPs, for them to just take it away, just doesn't seem logical.
I do rarely see the 17" in the wild any more. I remember one year at WWDC it was a dominating notebook, but not so much now days.
I can picture them being able to do this with a high res display. We shall see.