From the Contradiction Steam Greenlight Page:
The game is already available for iPad (Contradiction on iTunes) and has had some great reviews, but the Steam version for Mac & PC will be the ideal format and will feature faster and easier navigation, additional game effects and HD video. The Steam version has also been designed to work with a game controller and will work best plugged into a big TV with good sound! So if you like the idea, vote for the game!
Contradiction (Greenlight Video)