Vine graces Amazon Appstore, gives Kindle Fire HD's front-facing cam a workout

Sure, the Kindle Fire HD may only have a front-facing camera, but its solitary shooter is about to start flexing more than its video chat muscles. Vine has just arrived on Amazon's Appstore, and it's ready for owners to download and churn out as many six-second video clips as they please. Hit the source link below to grab version 1.2 of the free app.