This is, what? The third or fourth time this has gone free?
Could be the fifth - It is Ramadan, enjoy the gift. There is no catch, there is no cost.
There is also a Tetris / Floris tournament this Saturday in my hometown - and I wanted to make sure that people knew it isn't being held to try and sell copies of the game. Thus Floris is free so people can download it without $2 reservation and practice for the tourney.
Thanks for sharing this @Nightc1 - there will be at least one my major update and then I'm converting (and updating) the system to SpriteKit for iOS7.