Airplanes: The Lupe Version

You may have heard that B.O.B.'s track "Airplanes" was originally supposed to be Lupe's song. Well here it is, you can listen to his version, which I guess the label didn't like.
http://perezhilton.com/2011-04-11-lupe-fiasco-version-of-airplanes-with-hayley-williams

SOHH has Lupe talking about CRS

Here's an article with some quotes from Lupe on the still slight possibility of a CRS album.