"This app is still in development. Be one of the first to try it...

"This app is still in development. Be one of the first to try it and provide feedback"

Also when I tried to download it on a friend's device it said the had reached the max users at the moment. Word from the big man Robby Yung is that they're doing a phased release schedule and will open it to the public when they feel comfortable it is stable and almost bug-free (nothing is ever bug-free)