Twitter Resurrects Video Sharing Apps With Vine Launch

Mobile app takes advantage of Cards functionality

Remember last spring when “Instagram for video” apps like Viddy and Socialcam were all the rage? Things have been pretty quiet since then, especially after Socialcam was acquired for $60 million in July. The video-sharing app never launched, although that didn’t make Twitter shy away from buying Vine last fall. Today, Twitter finally launched Vine as a standalone app for iPhones and iPod Touches.