From Polytron’s Twitter:
Let’s encourage Montreal indie game developer Polytron!
 
Fez music available for free download http://bit.ly/6WxuTW or
special limited-edition 8cm CDR at the Polyshop http://bit.ly/6gHJB4 Wooo!

Update: New teaser video:

6955 – Fez Demos EP from Polytron Corporation on Vimeo.

From TouchArcade:
Independent developer Polytron (from Montreal) recently released details of their first iPhone game that’s in the works. Polytron is best known for their work on the innovative, and as yet unreleased game, Fez, a 2d/3d platformer (video). Well, no, Fez is not coming to the iPhone (as far as we know), but Polytron [...]

From kotaku.com:

He was toiling away in a Montreal game studio Artificial Mind and Movement, one of many working on some movie-based game. The game he’d been working on it in his own time was up for two awards at the Independent Games Festival at GDC. That game was Fez.
The game stars 2D fez-hat-wearing Gomez [...]