Tenth Amendment Center-Oklahoma Domino Effect?

Some interesting steps being taken by a number of states lately:

State Sovereignty for New Hampshire

Missouri claiming sovereignty under 10th amendment – HR 212

Arizona Warns Feds To Not Tread On 10th Amendment

Maybe Oklahoma started a domino effect with its legislation?

http://www.tenthamendmentcenter.com/2009/02/05/standing-up-to-the-feds/