First of all, hi everyone!
I'm writing this just because TellTale might lose potential customers that judging from the Steam page led to believe that their computers won't run the game.
I own a new Macbook Air 11", base version (1.6 Ghz i5, 2 GB Ram, 64 Gb HD) and since I wanted to risk it (and maybe just because I love you TT :D ) I bought it on Steam, thinking that if it wouldn't work on my MBA I could play it on my other Win computer.
But, surprise!! It works like a charm! At almost max settings, it works and plays beautifully :)
Sorry for the excessive enthusiasm but I just wanted to let everyone know this :)