Per some scuttlebutt on CycloneFanatic, to this rather noncryptic recruit page, I think it's safe to say that David Grant, the highest rated Iowa State recruit according to Rivals, has switched his pledge to the Huskers, who recently lost OL recruit Dan Hoch to Missouri.
Grant was rated as the #56 offensive tackle in the class and the #90 recruit from the state of Texas.
The ISU staff, however, has more than likely known of his switch for a while, and it may be why we were willing to take a bit of a flier on some OL prospects lately.