Erg, he just mentioned on twitter that he tried to put "piou piou" back on Apple's app store, where it was in 2011 but kek didn't pay the annual fee so it was removed (there's an annual licence ? Jeez, how much money is Apple making on this thing ?).
Here's the response he got :
Thing is, the #1 game on the app store is a flappy bird clone, as are 3 others in the top 10.