Mike Huckabee has a poll up asking, "What happens now?". It is an interesting question. I think that further action should ignore the federal government and concentrate at the state level. The federal government (especially President Obama) isn't listening, but the states are getting fed up. Just take a look at the 25 or so states that have some sort of 10th amendment resolution in the works. Here is a video about it. About halfway through is a map showing the states with resolutions.
As this is obviously not just a Texas phenominon, I am leaving you with links from elsewhere. Shawn at Caffeinated Thoughts shares his impressions of the one in Des Moines, IA. WorldNetDaily has coverage from around the country.