The organizations goals are two fold:
Organizers of the convention say it has two objectives: First, to raise the level of awareness of Vermonters of the feasibility of independence as a viable alternative to a nation which has lost its moral authority and is unsustainable. And second, to provide an example and a process for other states and nations which may be seriously considering separatism, secession, independence, and similar devolutionary strategies.
Personally, I applaud their efforts. But you know there is not a chance in Hell that the federal government would not fight tooth and nail to prevent this from occurring. I mean, where else would people go and, um, ski in the winter? More importantly, this would give other states the green light to jump ship.