Not good enough. Should have followed AZ the very day that AZ enacted their immigration law. Why are the good constitutional Americans in power act like cowards I cannot understand. It is this lack of guts encourages the communists to just push ahead.
Because the other states wanted to see what the repercussions would be (boycots, federal lawsuits, etc). The sky did not fall on Arizona, and an overwhleming majority of US citizens approve this new law. Therefore the mood of the electorate and timing is right, particularly after the tea party wave hits in the mid-terms.
We like it that way. They only get to screw us every other year instead of every year.
It's probably more of a timing issues... perhaps waiting for Governors and state legislatures to get seated first. As those state governments will be more conservative in nature, stronger packages will probably find their way forward.