Paracelsus posted about this in Q&A:

http://www.bautforum.com/questions-a...elativity.html

The link to the arxiv paper is there. If this is true, then we have indeed observered a breakdown of the Equivalence Principle, and are seeing a quantum gravity effect.

This is something that is consistent with a quantum gravity effect, but isn't a smoking gun. We're talking needle in a haystick type of stuff, a difference in time of minutes compared to total times of millions of years (or whatever it is, pretty big). There could be some other mechanism there. It's darned interesting, but let's don't get too excited yet.

-Richard