It's a way for a group of people to synchronize the way they view YouTube videos. Invite a group to watch a YouTube video at the same time. It's an opportunity to discuss, enjoy and elaborate on any video available on YouTube.
Will you try it? What do you think of SynchTube?
I think it could be used for many professional development opportunities, as well as class discussions and projects. The beta project has a bright future. Just use it.