A very interesting development from Twitter. It seems that they are aiming to monetize their stats on their Social Shares via GNIP (which has a record of all Tweets going back to the very start). I had some conversations with GNIP a couple of years back. The product was fine, the price seemed high but most of all, it seemed difficult. It was an enterprise sale with all the complexity that entails.
More to the point however, Twitter has always struck me as a huge game with no particular rules EXCEPT that the feedback was the victory. Without the feedback, Twitter rather loses its point.
People are pretty alarmed - see the below conversation between a Developer and Twitter.