From Detonation Radio (via ungoliantschilde tumblr):
This is an Easter Egg found in the Prometheus blu-ray. It has Peter Weyland talking about an old mentor and competitor. No names are mentioned, but it does not take a big leap to guess he is talking about Eldon Tyrell, from Blade Runner. It seems the worlds in these movies are officially linked now. With Scott working on a Blade Runner sequel, we might see this expounded on then.