This is very interesting on several levels.
First, Gov. Christie was the originator of GOP efforts to cut public employee benefits and salaries following his election in 2009, a year before the GOP landslide of 2010. He has been a leader in the party and a true policy innovator.
Second, both houses of the state legislature are controlled by the Democrats, not the GOP. So for this to pass Christie had to win the backing of some Dems. (He did the same last year in passing the budget.) Think about what an achievement that is.
Third, NJ is one of the most heavily unionized states, so this isn't for lack of a union organization in the state.
BTW: Gov. Christie will be on Meet the Press Sunday morning. Should be an interesting interview.