Adults-only social video app Vine (free) received an update from Twitter on Friday that now allows direct sharing of videos of any user in one's Vine feed to Twitter and Facebook. The update also adds the ability to embed a video onto web pages, though the process involves sending the code in an email to the user, and adds frames to shared and embedded videos, along with some bug fixes. The controversial app lets users create and upload six-second videos, and was subsequently changed to a 17+ age restriction on the App Store.
