I agree there is a need for such a party, but I don't see it gaining unless one of the majors suddenly implodes. The way the Republicans are heading that may happen. Other than that event, I don't see the need as creating the reality.
I am not willing to trust the current politicians that claim to be Libertarians. To me, they look like the same old harda$$ed, retrograde, conservative Republicans. Already the Libertarian message is clouded up by them.