My parents own Smart Phones, they DON'T play Video Games. I own a smart phone, and I only have one game on it besides the one that are built in (Zynga Texas Hold' Em poker) and I rarely play that.
I tried to get into Mobile gaming, but the controlling for it is terrible. Downloaded Doom for mobile and played it, controls were horrible, couldn't get passed the 2nd level. Plus, how am I supposed to play Street Fighter on a mobile device?
Mobile devices are the plague of gaming. They are contributing to the simple minded syndrome that people are slowly turning into. Really, Flappy Bird is just about as simple minded as you can possibly get. How can someone just tap the screen and have fun??? Candy crush is another game that's just a rip off of Dr, Mario or Columns, and has people going crazy for their highest scores when it's all been done before. And, angry birds is another simplistic game, although humorous, but you can find superior games of them on any dedicated Handheld console.