It’s a power grab, IMHO.
I'll reserve judgment for now as I do respect and admire at least a few names on the list, but I must admit having some suspicions in line with yours. I think these folks have seen the inbound tidal wave of the tea party, and are like surfers looking to catch a ride. If they want to lend their voices to the cause, more power to them, but if they think they can lead simply by jumping to the front of the parade, they are wrong.
Since it already exists I hope it's good for the Conservative movement. But I kinda have my doubts. It's coming from out of nowhere, basically, and a lot of old 20th Century institutional baggage seems to be associated with it.
I would much prefer an 18th Century fresh approach if you know what I mean.