Is Vertical Video - The Future?

Today, I read an article that Instagram is launching a new video service.  The interesting part of this launch is that they will be supporting only vertical video, which means, the videos that would be shot and displayed, will be shown in "vertical" mode, and users would not have to flip their phone to "landscape" orientation to see the video.  Looks like vertical video is the future and come to think of it, it makes sense, considering the minor issues we have in terms of flipping the phone back and forth for the orientation change to work.  I can foresee an upgrade to Youtube, where you can watch the videos in vertical mode and do not need to flip them to landscape mode.