This may sound dumb and turn out to be completely wrong, but I think Flappy could easily increase 1 order of magnitude within the next month. Feel free to flame me and tell me why I'm wrong.
First thing, people like the game. But when people start seeing this:
"We are a group of developers in Vietnam. We contacted the owner of Flappy Bird game and
he granted us all the rights to publish this coin using resources from the Flappy Bird game.
Any other third party uses the resources is considered illegal."
Leave a very taste in the mouth. I, for one doesn't wants to touch the Flappy.