Okay guys, this is weird.
Take a look at the games-page on this very website: http://www.telltalegames.com/games. There's an overview of all the Telltale games released so far. But take a closer look. Look at the collection of characters in the top right (Sam, Wallace, a Hidden Person, etc). Between Strong Bad and Max, there's a new character! He's even sort of animated. Clicking on him takes you to the following website:
http://whosquilly.com/ (if you wait long enough he starts wearing a top hat, which is awesome).
Clicking on 'quilly' there takes you to an iTunes-page:
This is where you come in. I don't have an iPhone, so it's up to you to download it and report back. It appears to have been there since the 12th of september, and the comments mention something about 'Macheist'. Not being a Mac user I have no idea what that is. What is this? What's the connection with Telltale? Why is Quilly hanging out with Strong Bad and Max? What is happening?