Facebook today hosted a press event at its Menlo Park campus to unveil new video capturing capabilities for image sharing product Instagram, which Facebook acquired back in April of last year. As expected, Instagram will now support short video uploads, positioning it as a serious competitor for Twitter's Vine, which allows users to capture six seconds of video footage. To use the new video capabilities, users will tap on the capture button, which adds a new video icon to activate video mode. Holding down on the video icon will allow users to take up to 15 seconds of footage, more than double the time that Vine permits. As wi
