Found these on the site you linked those pictures to, says it's a mixed use tower, 450,000 square feet. It's hard to tell where exactly this one would be, almost looks like 707B also, but could be 706B, are these earlier renderings for the same site? Either way, thought I'd share. Thanks for the link NYGuy.
Images taken from
http://abduzeedo.com/architect-day-d...lle-bernheimer