There are a few opponents to this change, both in the world and an inhouse. The argument is a grammatical one that because data was traditionally plural, it has to stay that way. But there are many cases where when a word is borrowed into english, it changes its grammatical form. One of our editors wrote to me in response to the announcement to say, things fall apart. Anarchy is loosed upon the world. And i would take a bet that we will not loose mere anarchy on the world or on our pages.