Not trying to be Debbie Downer here, but effort is a finite resource, and it seems to me that the anti-GoDaddy folks just hooked their cart up to the anti-SOPA horse. I don't have any domains with GoDaddy because they suck. I'd venture that anyone who is capable enough to move their domains on their own has already moved away from GoDaddy. Anyone not capable would have to pay someone else to do it for them. That's the fight the GoDaddy boycott folks are picking.
And so the question must be asked, will this effort have a good return on investment? Will GoDaddy be swayed? If they are, what will the impact be?
When I ask myself these questions, I come away with the impression that GoDaddy is the last thing anyone should be focused on. Congressmen need to feel the pressure from their constituents. Talk to your friends, and don't couch your language with domain registrar topics. It'll get you nowhere fast.