Starting today Twitter will begin experimenting with commerce. Give Twitter your billing and shipping info once and you can make one-click purchases from inside a tweet if you’re logged into the app or web service. The more interesting question for the average consumer is if the real-time nature of Twitter might produce some interesting new forms of business we haven’t seen yet. There are already transactional conversations happening every day on our platform between brands and their customers or artists and their fans, says Nathan Hubbard, Twitter’s head of commerce.