From PFT, Northwestern is beginning to start the process to unionize. It's just the start at that school, but about 30% have signed union cards and the NFLPA is supporting their effort.
The link:
http://profootballtalk.nbcsports.com/20 ... -unionize/
I think it's inevitable when you consider the money being created by the Football programs and how restrictive it is for the players to in some cases get plane fare home for family members who have suddenly died and other overly restrictive rules.
There was a thread on the old PI, but I don't remember anyone bringing this possibility up at the time.