Finally, Twitter has released the Vine app for Android. The social networking service spin-off from Twitter is gaining popularity among users an companies, for its simple sharing of 5 second video clips. The app supports all Android 4.0 devices and up. Twitter will also bring the app up to the speed of the iOS version, introducing hashtags, mentions, search, Facebook sharing and the ever-important use of a front-facing camera for frontal shots. Vine is now available on the Google Play Store, for free.