this thread is a place holder for all of the discussion about this now defunct skyscraper proposal. she was a beauty, but she ain't never gonna get built.
EDIT:
the current project for this piece of land is also being designed by santiago calatrava. it is called "Chicago Spire" and it can be discussed in the following thread:
http://forum.skyscraperpage.com/showthread.php?t=124368