Facebook has evidently cut Vine off its API less than 24 hours after the Twitter product launched. Twitter launched the video-sharing service earlier today, after acquiring the company in October. Users are prompted to find their Facebook friends — but a Facebook error reveals that Facebook has lopped Facebook off its API. Many apps, including Foursquare, use a Facebook API to connect a user with social contacts. But its API rules stipulate that developers “may not use Facebook Platform to export user data into a competing social network without our ... Read More