It does not sound long at all. This initiative was started by Facebook relatively recently. From the sounds of the article Google have worked with Facebook on t

It does not sound long at all. This initiative was started by Facebook relatively recently. From the sounds of the article Google have worked with Facebook on this 48v power supply aspect, and having proven some results in a Facebook server, they are now able to contribute that to the standard. They are not adding much else by the sounds of it. I doubt Google will build servers to a common standard, theirs will be far better.